Home / 724,268,001.20-1,086,402,001.80-264,221,178.80

Finding the Fourth Proportional to 724,268,001.20, 1,086,402,001.80 and 264,221,178.80

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Solution

The fourth proportional to 724,268,001.20, 1,086,402,001.80 and 264,221,178.80 is: 396,331,768.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,268,001.20 : 1,086,402,001.80 = 264,221,178.80 : x
  2. Step 2: Convert to fraction form
    724,268,001.20/1,086,402,001.80 = 264,221,178.80/x
  3. Step 3: Cross multiply
    724,268,001.20x = 1,086,402,001.80 × 264,221,178.80
  4. Step 4: Simplify right side
    724,268,001.20x = 287,050,417,566,275,712
  5. Step 5: Solve for x
    x = 287,050,417,566,275,712/724,268,001.20
  6. Step 6: Final answer
    x = 396,331,768.20

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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.