Home / 313,686,319.70-432,884,732.25-172,554,508.86

Finding the Fourth Proportional to 313,686,319.70, 432,884,732.25 and 172,554,508.86

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Solution

The fourth proportional to 313,686,319.70, 432,884,732.25 and 172,554,508.86 is: 238,123,908.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,686,319.70 : 432,884,732.25 = 172,554,508.86 : x
  2. Step 2: Convert to fraction form
    313,686,319.70/432,884,732.25 = 172,554,508.86/x
  3. Step 3: Cross multiply
    313,686,319.70x = 432,884,732.25 × 172,554,508.86
  4. Step 4: Simplify right side
    313,686,319.70x = 74,696,212,366,391,360
  5. Step 5: Solve for x
    x = 74,696,212,366,391,360/313,686,319.70
  6. Step 6: Final answer
    x = 238,123,908.11

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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.