Home / 7,643,911.20-11,465,866.80-7,059,326.10

Finding the Fourth Proportional to 7,643,911.20, 11,465,866.80 and 7,059,326.10

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Solution

The fourth proportional to 7,643,911.20, 11,465,866.80 and 7,059,326.10 is: 10,588,989.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,643,911.20 : 11,465,866.80 = 7,059,326.10 : x
  2. Step 2: Convert to fraction form
    7,643,911.20/11,465,866.80 = 7,059,326.10/x
  3. Step 3: Cross multiply
    7,643,911.20x = 11,465,866.80 × 7,059,326.10
  4. Step 4: Simplify right side
    7,643,911.20x = 80,941,292,760,363.48
  5. Step 5: Solve for x
    x = 80,941,292,760,363.48/7,643,911.20
  6. Step 6: Final answer
    x = 10,588,989.15

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Double scale
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Similar ratio
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1.5x scale

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.