Home / 84,248,680.20-126,373,020.30-69,887,963.40

Finding the Fourth Proportional to 84,248,680.20, 126,373,020.30 and 69,887,963.40

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Solution

The fourth proportional to 84,248,680.20, 126,373,020.30 and 69,887,963.40 is: 104,831,945.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,248,680.20 : 126,373,020.30 = 69,887,963.40 : x
  2. Step 2: Convert to fraction form
    84,248,680.20/126,373,020.30 = 69,887,963.40/x
  3. Step 3: Cross multiply
    84,248,680.20x = 126,373,020.30 × 69,887,963.40
  4. Step 4: Simplify right side
    84,248,680.20x = 8,831,953,017,473,858
  5. Step 5: Solve for x
    x = 8,831,953,017,473,858/84,248,680.20
  6. Step 6: Final answer
    x = 104,831,945.10

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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.