Home / 20,785,248,002.20-31,177,872,003.30-18,681,025,077.40

Finding the Fourth Proportional to 20,785,248,002.20, 31,177,872,003.30 and 18,681,025,077.40

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Solution

The fourth proportional to 20,785,248,002.20, 31,177,872,003.30 and 18,681,025,077.40 is: 28,021,537,616.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,785,248,002.20 : 31,177,872,003.30 = 18,681,025,077.40 : x
  2. Step 2: Convert to fraction form
    20,785,248,002.20/31,177,872,003.30 = 18,681,025,077.40/x
  3. Step 3: Cross multiply
    20,785,248,002.20x = 31,177,872,003.30 × 18,681,025,077.40
  4. Step 4: Simplify right side
    20,785,248,002.20x = 582,434,608,753,614,716,928
  5. Step 5: Solve for x
    x = 582,434,608,753,614,716,928/20,785,248,002.20
  6. Step 6: Final answer
    x = 28,021,537,616.10

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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.