Home / 745,471,998.80-1,118,207,998.20-527,793,765.20

Finding the Fourth Proportional to 745,471,998.80, 1,118,207,998.20 and 527,793,765.20

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Solution

The fourth proportional to 745,471,998.80, 1,118,207,998.20 and 527,793,765.20 is: 791,690,647.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,471,998.80 : 1,118,207,998.20 = 527,793,765.20 : x
  2. Step 2: Convert to fraction form
    745,471,998.80/1,118,207,998.20 = 527,793,765.20/x
  3. Step 3: Cross multiply
    745,471,998.80x = 1,118,207,998.20 × 527,793,765.20
  4. Step 4: Simplify right side
    745,471,998.80x = 590,183,209,646,732,800
  5. Step 5: Solve for x
    x = 590,183,209,646,732,800/745,471,998.80
  6. Step 6: Final answer
    x = 791,690,647.80

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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.