Home / 75,436,520.49-113,658,865.22-68,158,439.64

Finding the Fourth Proportional to 75,436,520.49, 113,658,865.22 and 68,158,439.64

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Solution

The fourth proportional to 75,436,520.49, 113,658,865.22 and 68,158,439.64 is: 102,693,110.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,436,520.49 : 113,658,865.22 = 68,158,439.64 : x
  2. Step 2: Convert to fraction form
    75,436,520.49/113,658,865.22 = 68,158,439.64/x
  3. Step 3: Cross multiply
    75,436,520.49x = 113,658,865.22 × 68,158,439.64
  4. Step 4: Simplify right side
    75,436,520.49x = 7,746,810,904,818,661
  5. Step 5: Solve for x
    x = 7,746,810,904,818,661/75,436,520.49
  6. Step 6: Final answer
    x = 102,693,110.11

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.