Home / 521,315,020,082.57-781,550,544,337.95-162,982,545,671.39

Finding the Fourth Proportional to 521,315,020,082.57, 781,550,544,337.95 and 162,982,545,671.39

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Solution

The fourth proportional to 521,315,020,082.57, 781,550,544,337.95 and 162,982,545,671.39 is: 244,341,889,989.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,315,020,082.57 : 781,550,544,337.95 = 162,982,545,671.39 : x
  2. Step 2: Convert to fraction form
    521,315,020,082.57/781,550,544,337.95 = 162,982,545,671.39/x
  3. Step 3: Cross multiply
    521,315,020,082.57x = 781,550,544,337.95 × 162,982,545,671.39
  4. Step 4: Simplify right side
    521,315,020,082.57x = 127,379,097,287,059,648,282,624
  5. Step 5: Solve for x
    x = 127,379,097,287,059,648,282,624/521,315,020,082.57
  6. Step 6: Final answer
    x = 244,341,889,989.83

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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.