Home / 10,881,121.60-16,321,682.40-8,989,998.40

Finding the Fourth Proportional to 10,881,121.60, 16,321,682.40 and 8,989,998.40

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Solution

The fourth proportional to 10,881,121.60, 16,321,682.40 and 8,989,998.40 is: 13,484,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,881,121.60 : 16,321,682.40 = 8,989,998.40 : x
  2. Step 2: Convert to fraction form
    10,881,121.60/16,321,682.40 = 8,989,998.40/x
  3. Step 3: Cross multiply
    10,881,121.60x = 16,321,682.40 × 8,989,998.40
  4. Step 4: Simplify right side
    10,881,121.60x = 146,731,898,661,308.16
  5. Step 5: Solve for x
    x = 146,731,898,661,308.16/10,881,121.60
  6. Step 6: Final answer
    x = 13,484,997.60

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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.