Home / 371,900,364.30-557,678,162.61-138,668,453.28

Finding the Fourth Proportional to 371,900,364.30, 557,678,162.61 and 138,668,453.28

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Solution

The fourth proportional to 371,900,364.30, 557,678,162.61 and 138,668,453.28 is: 207,938,404.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,900,364.30 : 557,678,162.61 = 138,668,453.28 : x
  2. Step 2: Convert to fraction form
    371,900,364.30/557,678,162.61 = 138,668,453.28/x
  3. Step 3: Cross multiply
    371,900,364.30x = 557,678,162.61 × 138,668,453.28
  4. Step 4: Simplify right side
    371,900,364.30x = 77,332,368,237,161,024
  5. Step 5: Solve for x
    x = 77,332,368,237,161,024/371,900,364.30
  6. Step 6: Final answer
    x = 207,938,404.10

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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.