Home / 515,077,855,535.61-772,732,015,729.17-156,957,857,068.23

Finding the Fourth Proportional to 515,077,855,535.61, 772,732,015,729.17 and 156,957,857,068.23

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Solution

The fourth proportional to 515,077,855,535.61, 772,732,015,729.17 and 156,957,857,068.23 is: 235,471,899,972.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,077,855,535.61 : 772,732,015,729.17 = 156,957,857,068.23 : x
  2. Step 2: Convert to fraction form
    515,077,855,535.61/772,732,015,729.17 = 156,957,857,068.23/x
  3. Step 3: Cross multiply
    515,077,855,535.61x = 772,732,015,729.17 × 156,957,857,068.23
  4. Step 4: Simplify right side
    515,077,855,535.61x = 121,286,361,276,864,341,737,472
  5. Step 5: Solve for x
    x = 121,286,361,276,864,341,737,472/515,077,855,535.61
  6. Step 6: Final answer
    x = 235,471,899,972.76

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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.