Home / 235,157,687.82-324,518,870.07-129,317,926.68

Finding the Fourth Proportional to 235,157,687.82, 324,518,870.07 and 129,317,926.68

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Solution

The fourth proportional to 235,157,687.82, 324,518,870.07 and 129,317,926.68 is: 178,459,432.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,157,687.82 : 324,518,870.07 = 129,317,926.68 : x
  2. Step 2: Convert to fraction form
    235,157,687.82/324,518,870.07 = 129,317,926.68/x
  3. Step 3: Cross multiply
    235,157,687.82x = 324,518,870.07 × 129,317,926.68
  4. Step 4: Simplify right side
    235,157,687.82x = 41,966,107,445,988,704
  5. Step 5: Solve for x
    x = 41,966,107,445,988,704/235,157,687.82
  6. Step 6: Final answer
    x = 178,459,432.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.