Home / 91,665,977.76-126,832,146.48-79,929,717.12

Finding the Fourth Proportional to 91,665,977.76, 126,832,146.48 and 79,929,717.12

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Solution

The fourth proportional to 91,665,977.76, 126,832,146.48 and 79,929,717.12 is: 110,593,459.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,665,977.76 : 126,832,146.48 = 79,929,717.12 : x
  2. Step 2: Convert to fraction form
    91,665,977.76/126,832,146.48 = 79,929,717.12/x
  3. Step 3: Cross multiply
    91,665,977.76x = 126,832,146.48 × 79,929,717.12
  4. Step 4: Simplify right side
    91,665,977.76x = 10,137,657,589,868,804
  5. Step 5: Solve for x
    x = 10,137,657,589,868,804/91,665,977.76
  6. Step 6: Final answer
    x = 110,593,459.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.