Home / 7,328,221.80-10,992,332.70-5,415,034.20

Finding the Fourth Proportional to 7,328,221.80, 10,992,332.70 and 5,415,034.20

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Solution

The fourth proportional to 7,328,221.80, 10,992,332.70 and 5,415,034.20 is: 8,122,551.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328,221.80 : 10,992,332.70 = 5,415,034.20 : x
  2. Step 2: Convert to fraction form
    7,328,221.80/10,992,332.70 = 5,415,034.20/x
  3. Step 3: Cross multiply
    7,328,221.80x = 10,992,332.70 × 5,415,034.20
  4. Step 4: Simplify right side
    7,328,221.80x = 59,523,857,508,278.34
  5. Step 5: Solve for x
    x = 59,523,857,508,278.34/7,328,221.80
  6. Step 6: Final answer
    x = 8,122,551.30

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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.