Home / 100,320,245.70-150,480,368.55-85,014,744.90

Finding the Fourth Proportional to 100,320,245.70, 150,480,368.55 and 85,014,744.90

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Solution

The fourth proportional to 100,320,245.70, 150,480,368.55 and 85,014,744.90 is: 127,522,117.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,320,245.70 : 150,480,368.55 = 85,014,744.90 : x
  2. Step 2: Convert to fraction form
    100,320,245.70/150,480,368.55 = 85,014,744.90/x
  3. Step 3: Cross multiply
    100,320,245.70x = 150,480,368.55 × 85,014,744.90
  4. Step 4: Simplify right side
    100,320,245.70x = 12,793,050,144,736,234
  5. Step 5: Solve for x
    x = 12,793,050,144,736,234/100,320,245.70
  6. Step 6: Final answer
    x = 127,522,117.35

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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.