Home / 6,915,613.20-10,373,419.80-6,443,221.20

Finding the Fourth Proportional to 6,915,613.20, 10,373,419.80 and 6,443,221.20

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Solution

The fourth proportional to 6,915,613.20, 10,373,419.80 and 6,443,221.20 is: 9,664,831.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,915,613.20 : 10,373,419.80 = 6,443,221.20 : x
  2. Step 2: Convert to fraction form
    6,915,613.20/10,373,419.80 = 6,443,221.20/x
  3. Step 3: Cross multiply
    6,915,613.20x = 10,373,419.80 × 6,443,221.20
  4. Step 4: Simplify right side
    6,915,613.20x = 66,838,238,371,859.77
  5. Step 5: Solve for x
    x = 66,838,238,371,859.77/6,915,613.20
  6. Step 6: Final answer
    x = 9,664,831.80

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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.