Home / 20,778,134.40-31,167,201.60-16,998,998.40

Finding the Fourth Proportional to 20,778,134.40, 31,167,201.60 and 16,998,998.40

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Solution

The fourth proportional to 20,778,134.40, 31,167,201.60 and 16,998,998.40 is: 25,498,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,778,134.40 : 31,167,201.60 = 16,998,998.40 : x
  2. Step 2: Convert to fraction form
    20,778,134.40/31,167,201.60 = 16,998,998.40/x
  3. Step 3: Cross multiply
    20,778,134.40x = 31,167,201.60 × 16,998,998.40
  4. Step 4: Simplify right side
    20,778,134.40x = 529,811,210,130,877.44
  5. Step 5: Solve for x
    x = 529,811,210,130,877.44/20,778,134.40
  6. Step 6: Final answer
    x = 25,498,497.60

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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.