Home / 10,405,512.10-15,608,268.15-9,980,359.30

Finding the Fourth Proportional to 10,405,512.10, 15,608,268.15 and 9,980,359.30

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Solution

The fourth proportional to 10,405,512.10, 15,608,268.15 and 9,980,359.30 is: 14,970,538.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,405,512.10 : 15,608,268.15 = 9,980,359.30 : x
  2. Step 2: Convert to fraction form
    10,405,512.10/15,608,268.15 = 9,980,359.30/x
  3. Step 3: Cross multiply
    10,405,512.10x = 15,608,268.15 × 9,980,359.30
  4. Step 4: Simplify right side
    10,405,512.10x = 155,776,124,187,746.31
  5. Step 5: Solve for x
    x = 155,776,124,187,746.31/10,405,512.10
  6. Step 6: Final answer
    x = 14,970,538.95

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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.