Home / 7,428,002.30-11,142,003.45-6,400,549.70

Finding the Fourth Proportional to 7,428,002.30, 11,142,003.45 and 6,400,549.70

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Solution

The fourth proportional to 7,428,002.30, 11,142,003.45 and 6,400,549.70 is: 9,600,824.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428,002.30 : 11,142,003.45 = 6,400,549.70 : x
  2. Step 2: Convert to fraction form
    7,428,002.30/11,142,003.45 = 6,400,549.70/x
  3. Step 3: Cross multiply
    7,428,002.30x = 11,142,003.45 × 6,400,549.70
  4. Step 4: Simplify right side
    7,428,002.30x = 71,314,946,839,296.47
  5. Step 5: Solve for x
    x = 71,314,946,839,296.47/7,428,002.30
  6. Step 6: Final answer
    x = 9,600,824.55

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Similar ratio
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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.