Home / 1,120,214,530.80-1,680,321,796.20-603,653,878.80

Finding the Fourth Proportional to 1,120,214,530.80, 1,680,321,796.20 and 603,653,878.80

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Solution

The fourth proportional to 1,120,214,530.80, 1,680,321,796.20 and 603,653,878.80 is: 905,480,818.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,214,530.80 : 1,680,321,796.20 = 603,653,878.80 : x
  2. Step 2: Convert to fraction form
    1,120,214,530.80/1,680,321,796.20 = 603,653,878.80/x
  3. Step 3: Cross multiply
    1,120,214,530.80x = 1,680,321,796.20 × 603,653,878.80
  4. Step 4: Simplify right side
    1,120,214,530.80x = 1,014,332,769,908,313,088
  5. Step 5: Solve for x
    x = 1,014,332,769,908,313,088/1,120,214,530.80
  6. Step 6: Final answer
    x = 905,480,818.20

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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.