Home / 684,288,005.80-1,026,432,008.70-664,132,613.80

Finding the Fourth Proportional to 684,288,005.80, 1,026,432,008.70 and 664,132,613.80

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Solution

The fourth proportional to 684,288,005.80, 1,026,432,008.70 and 664,132,613.80 is: 996,198,920.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,288,005.80 : 1,026,432,008.70 = 664,132,613.80 : x
  2. Step 2: Convert to fraction form
    684,288,005.80/1,026,432,008.70 = 664,132,613.80/x
  3. Step 3: Cross multiply
    684,288,005.80x = 1,026,432,008.70 × 664,132,613.80
  4. Step 4: Simplify right side
    684,288,005.80x = 681,686,972,825,915,264
  5. Step 5: Solve for x
    x = 681,686,972,825,915,264/684,288,005.80
  6. Step 6: Final answer
    x = 996,198,920.70

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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.