Home / 18,998,351.20-28,488,545.52-6,865,458.40

Finding the Fourth Proportional to 18,998,351.20, 28,488,545.52 and 6,865,458.40

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Solution

The fourth proportional to 18,998,351.20, 28,488,545.52 and 6,865,458.40 is: 10,294,942.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,998,351.20 : 28,488,545.52 = 6,865,458.40 : x
  2. Step 2: Convert to fraction form
    18,998,351.20/28,488,545.52 = 6,865,458.40/x
  3. Step 3: Cross multiply
    18,998,351.20x = 28,488,545.52 × 6,865,458.40
  4. Step 4: Simplify right side
    18,998,351.20x = 195,586,924,144,066.38
  5. Step 5: Solve for x
    x = 195,586,924,144,066.38/18,998,351.20
  6. Step 6: Final answer
    x = 10,294,942.02

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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.