Home / 20,853,557.20-31,280,335.80-20,003,251.60

Finding the Fourth Proportional to 20,853,557.20, 31,280,335.80 and 20,003,251.60

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Solution

The fourth proportional to 20,853,557.20, 31,280,335.80 and 20,003,251.60 is: 30,004,877.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,853,557.20 : 31,280,335.80 = 20,003,251.60 : x
  2. Step 2: Convert to fraction form
    20,853,557.20/31,280,335.80 = 20,003,251.60/x
  3. Step 3: Cross multiply
    20,853,557.20x = 31,280,335.80 × 20,003,251.60
  4. Step 4: Simplify right side
    20,853,557.20x = 625,708,427,139,887.38
  5. Step 5: Solve for x
    x = 625,708,427,139,887.38/20,853,557.20
  6. Step 6: Final answer
    x = 30,004,877.40

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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.