Home / 287,417,751.60-431,120,402.46-80,150,631.96

Finding the Fourth Proportional to 287,417,751.60, 431,120,402.46 and 80,150,631.96

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Solution

The fourth proportional to 287,417,751.60, 431,120,402.46 and 80,150,631.96 is: 120,224,212.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,417,751.60 : 431,120,402.46 = 80,150,631.96 : x
  2. Step 2: Convert to fraction form
    287,417,751.60/431,120,402.46 = 80,150,631.96/x
  3. Step 3: Cross multiply
    287,417,751.60x = 431,120,402.46 × 80,150,631.96
  4. Step 4: Simplify right side
    287,417,751.60x = 34,554,572,708,018,536
  5. Step 5: Solve for x
    x = 34,554,572,708,018,536/287,417,751.60
  6. Step 6: Final answer
    x = 120,224,212.02

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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.