Home / 157,406,631.40-236,109,947.10-80,879,127.40

Finding the Fourth Proportional to 157,406,631.40, 236,109,947.10 and 80,879,127.40

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Solution

The fourth proportional to 157,406,631.40, 236,109,947.10 and 80,879,127.40 is: 121,318,691.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,406,631.40 : 236,109,947.10 = 80,879,127.40 : x
  2. Step 2: Convert to fraction form
    157,406,631.40/236,109,947.10 = 80,879,127.40/x
  3. Step 3: Cross multiply
    157,406,631.40x = 236,109,947.10 × 80,879,127.40
  4. Step 4: Simplify right side
    157,406,631.40x = 19,096,366,491,908,160
  5. Step 5: Solve for x
    x = 19,096,366,491,908,160/157,406,631.40
  6. Step 6: Final answer
    x = 121,318,691.10

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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.