Home / 287,417,654.64-431,120,257.11-80,150,534.64

Finding the Fourth Proportional to 287,417,654.64, 431,120,257.11 and 80,150,534.64

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Solution

The fourth proportional to 287,417,654.64, 431,120,257.11 and 80,150,534.64 is: 120,224,066.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,417,654.64 : 431,120,257.11 = 80,150,534.64 : x
  2. Step 2: Convert to fraction form
    287,417,654.64/431,120,257.11 = 80,150,534.64/x
  3. Step 3: Cross multiply
    287,417,654.64x = 431,120,257.11 × 80,150,534.64
  4. Step 4: Simplify right side
    287,417,654.64x = 34,554,519,101,500,764
  5. Step 5: Solve for x
    x = 34,554,519,101,500,764/287,417,654.64
  6. Step 6: Final answer
    x = 120,224,066.07

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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.