Home / 28,386,732.20-42,579,485.52-7,915,906.50

Finding the Fourth Proportional to 28,386,732.20, 42,579,485.52 and 7,915,906.50

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Solution

The fourth proportional to 28,386,732.20, 42,579,485.52 and 7,915,906.50 is: 11,873,688.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,386,732.20 : 42,579,485.52 = 7,915,906.50 : x
  2. Step 2: Convert to fraction form
    28,386,732.20/42,579,485.52 = 7,915,906.50/x
  3. Step 3: Cross multiply
    28,386,732.20x = 42,579,485.52 × 7,915,906.50
  4. Step 4: Simplify right side
    28,386,732.20x = 337,055,226,194,423.88
  5. Step 5: Solve for x
    x = 337,055,226,194,423.88/28,386,732.20
  6. Step 6: Final answer
    x = 11,873,688.87

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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.