Home / 108,909,974.20-163,364,961.30-84,251,111.80

Finding the Fourth Proportional to 108,909,974.20, 163,364,961.30 and 84,251,111.80

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Solution

The fourth proportional to 108,909,974.20, 163,364,961.30 and 84,251,111.80 is: 126,376,667.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,909,974.20 : 163,364,961.30 = 84,251,111.80 : x
  2. Step 2: Convert to fraction form
    108,909,974.20/163,364,961.30 = 84,251,111.80/x
  3. Step 3: Cross multiply
    108,909,974.20x = 163,364,961.30 × 84,251,111.80
  4. Step 4: Simplify right side
    108,909,974.20x = 13,763,679,618,688,974
  5. Step 5: Solve for x
    x = 13,763,679,618,688,974/108,909,974.20
  6. Step 6: Final answer
    x = 126,376,667.70

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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.