Home / 124,557,648.30-186,836,472.45-72,689,006.70

Finding the Fourth Proportional to 124,557,648.30, 186,836,472.45 and 72,689,006.70

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Solution

The fourth proportional to 124,557,648.30, 186,836,472.45 and 72,689,006.70 is: 109,033,510.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,557,648.30 : 186,836,472.45 = 72,689,006.70 : x
  2. Step 2: Convert to fraction form
    124,557,648.30/186,836,472.45 = 72,689,006.70/x
  3. Step 3: Cross multiply
    124,557,648.30x = 186,836,472.45 × 72,689,006.70
  4. Step 4: Simplify right side
    124,557,648.30x = 13,580,957,597,722,416
  5. Step 5: Solve for x
    x = 13,580,957,597,722,416/124,557,648.30
  6. Step 6: Final answer
    x = 109,033,510.05

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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.