Home / 768,063,947.85-1,151,966,086.86-215,239,237.83

Finding the Fourth Proportional to 768,063,947.85, 1,151,966,086.86 and 215,239,237.83

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Solution

The fourth proportional to 768,063,947.85, 1,151,966,086.86 and 215,239,237.83 is: 322,822,472.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,063,947.85 : 1,151,966,086.86 = 215,239,237.83 : x
  2. Step 2: Convert to fraction form
    768,063,947.85/1,151,966,086.86 = 215,239,237.83/x
  3. Step 3: Cross multiply
    768,063,947.85x = 1,151,966,086.86 × 215,239,237.83
  4. Step 4: Simplify right side
    768,063,947.85x = 247,948,302,541,753,984
  5. Step 5: Solve for x
    x = 247,948,302,541,753,984/768,063,947.85
  6. Step 6: Final answer
    x = 322,822,472.32

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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.