Home / 375,624,411.31-518,359,778.13-208,358,940.85

Finding the Fourth Proportional to 375,624,411.31, 518,359,778.13 and 208,358,940.85

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Solution

The fourth proportional to 375,624,411.31, 518,359,778.13 and 208,358,940.85 is: 287,534,279.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,624,411.31 : 518,359,778.13 = 208,358,940.85 : x
  2. Step 2: Convert to fraction form
    375,624,411.31/518,359,778.13 = 208,358,940.85/x
  3. Step 3: Cross multiply
    375,624,411.31x = 518,359,778.13 × 208,358,940.85
  4. Step 4: Simplify right side
    375,624,411.31x = 108,004,894,350,407,792
  5. Step 5: Solve for x
    x = 108,004,894,350,407,792/375,624,411.31
  6. Step 6: Final answer
    x = 287,534,279.19

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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.