Home / 642,752,044,450.20-886,997,966,123.85-353,720,303,838.72

Finding the Fourth Proportional to 642,752,044,450.20, 886,997,966,123.85 and 353,720,303,838.72

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Solution

The fourth proportional to 642,752,044,450.20, 886,997,966,123.85 and 353,720,303,838.72 is: 488,134,098,974.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,752,044,450.20 : 886,997,966,123.85 = 353,720,303,838.72 : x
  2. Step 2: Convert to fraction form
    642,752,044,450.20/886,997,966,123.85 = 353,720,303,838.72/x
  3. Step 3: Cross multiply
    642,752,044,450.20x = 886,997,966,123.85 × 353,720,303,838.72
  4. Step 4: Simplify right side
    642,752,044,450.20x = 313,749,190,081,654,835,642,368
  5. Step 5: Solve for x
    x = 313,749,190,081,654,835,642,368/642,752,044,450.20
  6. Step 6: Final answer
    x = 488,134,098,974.41

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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.