Home / 642,676,046.46-886,830,972.21-360,429,945.66

Finding the Fourth Proportional to 642,676,046.46, 886,830,972.21 and 360,429,945.66

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Solution

The fourth proportional to 642,676,046.46, 886,830,972.21 and 360,429,945.66 is: 497,358,569.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,676,046.46 : 886,830,972.21 = 360,429,945.66 : x
  2. Step 2: Convert to fraction form
    642,676,046.46/886,830,972.21 = 360,429,945.66/x
  3. Step 3: Cross multiply
    642,676,046.46x = 886,830,972.21 × 360,429,945.66
  4. Step 4: Simplify right side
    642,676,046.46x = 319,640,439,123,255,296
  5. Step 5: Solve for x
    x = 319,640,439,123,255,296/642,676,046.46
  6. Step 6: Final answer
    x = 497,358,569.51

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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.