Home / 257,352,250.80-386,084,363.40-84,799,700.40

Finding the Fourth Proportional to 257,352,250.80, 386,084,363.40 and 84,799,700.40

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Solution

The fourth proportional to 257,352,250.80, 386,084,363.40 and 84,799,700.40 is: 127,217,998.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,352,250.80 : 386,084,363.40 = 84,799,700.40 : x
  2. Step 2: Convert to fraction form
    257,352,250.80/386,084,363.40 = 84,799,700.40/x
  3. Step 3: Cross multiply
    257,352,250.80x = 386,084,363.40 × 84,799,700.40
  4. Step 4: Simplify right side
    257,352,250.80x = 32,739,838,345,444,724
  5. Step 5: Solve for x
    x = 32,739,838,345,444,724/257,352,250.80
  6. Step 6: Final answer
    x = 127,217,998.85

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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.