Home / 289,535,198.46-399,561,248.70-157,376,505.96

Finding the Fourth Proportional to 289,535,198.46, 399,561,248.70 and 157,376,505.96

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Solution

The fourth proportional to 289,535,198.46, 399,561,248.70 and 157,376,505.96 is: 217,181,032.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,535,198.46 : 399,561,248.70 = 157,376,505.96 : x
  2. Step 2: Convert to fraction form
    289,535,198.46/399,561,248.70 = 157,376,505.96/x
  3. Step 3: Cross multiply
    289,535,198.46x = 399,561,248.70 × 157,376,505.96
  4. Step 4: Simplify right side
    289,535,198.46x = 62,881,553,237,420,592
  5. Step 5: Solve for x
    x = 62,881,553,237,420,592/289,535,198.46
  6. Step 6: Final answer
    x = 217,181,032.12

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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.