Home / 28,518,419.14-42,766,889.12-10,318,114.92

Finding the Fourth Proportional to 28,518,419.14, 42,766,889.12 and 10,318,114.92

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Solution

The fourth proportional to 28,518,419.14, 42,766,889.12 and 10,318,114.92 is: 15,473,286.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,518,419.14 : 42,766,889.12 = 10,318,114.92 : x
  2. Step 2: Convert to fraction form
    28,518,419.14/42,766,889.12 = 10,318,114.92/x
  3. Step 3: Cross multiply
    28,518,419.14x = 42,766,889.12 × 10,318,114.92
  4. Step 4: Simplify right side
    28,518,419.14x = 441,273,676,711,057.62
  5. Step 5: Solve for x
    x = 441,273,676,711,057.62/28,518,419.14
  6. Step 6: Final answer
    x = 15,473,286.74

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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.