Home / 115,912,215.10-173,868,322.65-103,818,979.90

Finding the Fourth Proportional to 115,912,215.10, 173,868,322.65 and 103,818,979.90

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Solution

The fourth proportional to 115,912,215.10, 173,868,322.65 and 103,818,979.90 is: 155,728,469.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,912,215.10 : 173,868,322.65 = 103,818,979.90 : x
  2. Step 2: Convert to fraction form
    115,912,215.10/173,868,322.65 = 103,818,979.90/x
  3. Step 3: Cross multiply
    115,912,215.10x = 173,868,322.65 × 103,818,979.90
  4. Step 4: Simplify right side
    115,912,215.10x = 18,050,831,894,447,068
  5. Step 5: Solve for x
    x = 18,050,831,894,447,068/115,912,215.10
  6. Step 6: Final answer
    x = 155,728,469.85

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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.