Home / 389,465,167.80-584,197,751.70-102,279,862.20

Finding the Fourth Proportional to 389,465,167.80, 584,197,751.70 and 102,279,862.20

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Solution

The fourth proportional to 389,465,167.80, 584,197,751.70 and 102,279,862.20 is: 153,419,793.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,465,167.80 : 584,197,751.70 = 102,279,862.20 : x
  2. Step 2: Convert to fraction form
    389,465,167.80/584,197,751.70 = 102,279,862.20/x
  3. Step 3: Cross multiply
    389,465,167.80x = 584,197,751.70 × 102,279,862.20
  4. Step 4: Simplify right side
    389,465,167.80x = 59,751,665,541,425,824
  5. Step 5: Solve for x
    x = 59,751,665,541,425,824/389,465,167.80
  6. Step 6: Final answer
    x = 153,419,793.30

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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.