Home / 285,555,520.68-428,343,432.75-91,441,713.12

Finding the Fourth Proportional to 285,555,520.68, 428,343,432.75 and 91,441,713.12

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Solution

The fourth proportional to 285,555,520.68, 428,343,432.75 and 91,441,713.12 is: 137,165,820.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,555,520.68 : 428,343,432.75 = 91,441,713.12 : x
  2. Step 2: Convert to fraction form
    285,555,520.68/428,343,432.75 = 91,441,713.12/x
  3. Step 3: Cross multiply
    285,555,520.68x = 428,343,432.75 × 91,441,713.12
  4. Step 4: Simplify right side
    285,555,520.68x = 39,168,457,294,361,512
  5. Step 5: Solve for x
    x = 39,168,457,294,361,512/285,555,520.68
  6. Step 6: Final answer
    x = 137,165,820.51

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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.