Home / 18,715,079.30-28,072,618.95-15,975,205.70

Finding the Fourth Proportional to 18,715,079.30, 28,072,618.95 and 15,975,205.70

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Solution

The fourth proportional to 18,715,079.30, 28,072,618.95 and 15,975,205.70 is: 23,962,808.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,715,079.30 : 28,072,618.95 = 15,975,205.70 : x
  2. Step 2: Convert to fraction form
    18,715,079.30/28,072,618.95 = 15,975,205.70/x
  3. Step 3: Cross multiply
    18,715,079.30x = 28,072,618.95 × 15,975,205.70
  4. Step 4: Simplify right side
    18,715,079.30x = 448,465,862,263,968
  5. Step 5: Solve for x
    x = 448,465,862,263,968/18,715,079.30
  6. Step 6: Final answer
    x = 23,962,808.55

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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.