Home / 7,178,937.30-9,906,933.51-3,915,751.86

Finding the Fourth Proportional to 7,178,937.30, 9,906,933.51 and 3,915,751.86

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Solution

The fourth proportional to 7,178,937.30, 9,906,933.51 and 3,915,751.86 is: 5,403,737.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178,937.30 : 9,906,933.51 = 3,915,751.86 : x
  2. Step 2: Convert to fraction form
    7,178,937.30/9,906,933.51 = 3,915,751.86/x
  3. Step 3: Cross multiply
    7,178,937.30x = 9,906,933.51 × 3,915,751.86
  4. Step 4: Simplify right side
    7,178,937.30x = 38,793,093,318,678.83
  5. Step 5: Solve for x
    x = 38,793,093,318,678.83/7,178,937.30
  6. Step 6: Final answer
    x = 5,403,737.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.