Home / 377,421,200.35-520,836,290.17-207,872,182.31

Finding the Fourth Proportional to 377,421,200.35, 520,836,290.17 and 207,872,182.31

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Solution

The fourth proportional to 377,421,200.35, 520,836,290.17 and 207,872,182.31 is: 286,860,876.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,421,200.35 : 520,836,290.17 = 207,872,182.31 : x
  2. Step 2: Convert to fraction form
    377,421,200.35/520,836,290.17 = 207,872,182.31/x
  3. Step 3: Cross multiply
    377,421,200.35x = 520,836,290.17 × 207,872,182.31
  4. Step 4: Simplify right side
    377,421,200.35x = 108,267,376,260,758,448
  5. Step 5: Solve for x
    x = 108,267,376,260,758,448/377,421,200.35
  6. Step 6: Final answer
    x = 286,860,876.29

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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.