Home / 77,708,704,493.30-116,563,056,739.95-72,129,849,451.70

Finding the Fourth Proportional to 77,708,704,493.30, 116,563,056,739.95 and 72,129,849,451.70

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Solution

The fourth proportional to 77,708,704,493.30, 116,563,056,739.95 and 72,129,849,451.70 is: 108,194,774,177.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,708,704,493.30 : 116,563,056,739.95 = 72,129,849,451.70 : x
  2. Step 2: Convert to fraction form
    77,708,704,493.30/116,563,056,739.95 = 72,129,849,451.70/x
  3. Step 3: Cross multiply
    77,708,704,493.30x = 116,563,056,739.95 × 72,129,849,451.70
  4. Step 4: Simplify right side
    77,708,704,493.30x = 8,407,675,734,282,557,456,384
  5. Step 5: Solve for x
    x = 8,407,675,734,282,557,456,384/77,708,704,493.30
  6. Step 6: Final answer
    x = 108,194,774,177.55

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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.