Home / 84,248,701.70-126,373,052.55-69,887,984.90

Finding the Fourth Proportional to 84,248,701.70, 126,373,052.55 and 69,887,984.90

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Solution

The fourth proportional to 84,248,701.70, 126,373,052.55 and 69,887,984.90 is: 104,831,977.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,248,701.70 : 126,373,052.55 = 69,887,984.90 : x
  2. Step 2: Convert to fraction form
    84,248,701.70/126,373,052.55 = 69,887,984.90/x
  3. Step 3: Cross multiply
    84,248,701.70x = 126,373,052.55 × 69,887,984.90
  4. Step 4: Simplify right side
    84,248,701.70x = 8,831,957,988,381,307
  5. Step 5: Solve for x
    x = 8,831,957,988,381,307/84,248,701.70
  6. Step 6: Final answer
    x = 104,831,977.35

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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.