Home / 10,440,711.40-15,661,067.10-9,180,999.40

Finding the Fourth Proportional to 10,440,711.40, 15,661,067.10 and 9,180,999.40

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Solution

The fourth proportional to 10,440,711.40, 15,661,067.10 and 9,180,999.40 is: 13,771,499.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,440,711.40 : 15,661,067.10 = 9,180,999.40 : x
  2. Step 2: Convert to fraction form
    10,440,711.40/15,661,067.10 = 9,180,999.40/x
  3. Step 3: Cross multiply
    10,440,711.40x = 15,661,067.10 × 9,180,999.40
  4. Step 4: Simplify right side
    10,440,711.40x = 143,784,247,648,459.75
  5. Step 5: Solve for x
    x = 143,784,247,648,459.75/10,440,711.40
  6. Step 6: Final answer
    x = 13,771,499.10

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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.