Home / 21,165,785,998.20-31,748,678,997.30-17,247,577,793.40

Finding the Fourth Proportional to 21,165,785,998.20, 31,748,678,997.30 and 17,247,577,793.40

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Solution

The fourth proportional to 21,165,785,998.20, 31,748,678,997.30 and 17,247,577,793.40 is: 25,871,366,690.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,165,785,998.20 : 31,748,678,997.30 = 17,247,577,793.40 : x
  2. Step 2: Convert to fraction form
    21,165,785,998.20/31,748,678,997.30 = 17,247,577,793.40/x
  3. Step 3: Cross multiply
    21,165,785,998.20x = 31,748,678,997.30 × 17,247,577,793.40
  4. Step 4: Simplify right side
    21,165,785,998.20x = 547,587,810,843,616,477,184
  5. Step 5: Solve for x
    x = 547,587,810,843,616,477,184/21,165,785,998.20
  6. Step 6: Final answer
    x = 25,871,366,690.10

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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.