Home / 1,120,214,499.80-1,680,321,749.70-603,653,847.80

Finding the Fourth Proportional to 1,120,214,499.80, 1,680,321,749.70 and 603,653,847.80

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Solution

The fourth proportional to 1,120,214,499.80, 1,680,321,749.70 and 603,653,847.80 is: 905,480,771.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,214,499.80 : 1,680,321,749.70 = 603,653,847.80 : x
  2. Step 2: Convert to fraction form
    1,120,214,499.80/1,680,321,749.70 = 603,653,847.80/x
  3. Step 3: Cross multiply
    1,120,214,499.80x = 1,680,321,749.70 × 603,653,847.80
  4. Step 4: Simplify right side
    1,120,214,499.80x = 1,014,332,689,748,433,408
  5. Step 5: Solve for x
    x = 1,014,332,689,748,433,408/1,120,214,499.80
  6. Step 6: Final answer
    x = 905,480,771.70

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Half scale
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Double scale
Find fourth proportional to 1,120,214,500.80, 1,680,321,751.20 and 603,653,848.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.