Home / 18,711,384.30-28,067,076.45-15,971,510.70

Finding the Fourth Proportional to 18,711,384.30, 28,067,076.45 and 15,971,510.70

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Solution

The fourth proportional to 18,711,384.30, 28,067,076.45 and 15,971,510.70 is: 23,957,266.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711,384.30 : 28,067,076.45 = 15,971,510.70 : x
  2. Step 2: Convert to fraction form
    18,711,384.30/28,067,076.45 = 15,971,510.70/x
  3. Step 3: Cross multiply
    18,711,384.30x = 28,067,076.45 × 15,971,510.70
  4. Step 4: Simplify right side
    18,711,384.30x = 448,273,611,838,893
  5. Step 5: Solve for x
    x = 448,273,611,838,893/18,711,384.30
  6. Step 6: Final answer
    x = 23,957,266.05

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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.