Home / 154,605,468.80-231,936,196.80-77,735,043.20

Finding the Fourth Proportional to 154,605,468.80, 231,936,196.80 and 77,735,043.20

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Solution

The fourth proportional to 154,605,468.80, 231,936,196.80 and 77,735,043.20 is: 116,616,639.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,605,468.80 : 231,936,196.80 = 77,735,043.20 : x
  2. Step 2: Convert to fraction form
    154,605,468.80/231,936,196.80 = 77,735,043.20/x
  3. Step 3: Cross multiply
    154,605,468.80x = 231,936,196.80 × 77,735,043.20
  4. Step 4: Simplify right side
    154,605,468.80x = 18,029,570,277,891,704
  5. Step 5: Solve for x
    x = 18,029,570,277,891,704/154,605,468.80
  6. Step 6: Final answer
    x = 116,616,639.88

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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.