Home / 128,115,853.20-192,155,117.40-37,229,965.20

Finding the Fourth Proportional to 128,115,853.20, 192,155,117.40 and 37,229,965.20

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Solution

The fourth proportional to 128,115,853.20, 192,155,117.40 and 37,229,965.20 is: 55,839,524.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,115,853.20 : 192,155,117.40 = 37,229,965.20 : x
  2. Step 2: Convert to fraction form
    128,115,853.20/192,155,117.40 = 37,229,965.20/x
  3. Step 3: Cross multiply
    128,115,853.20x = 192,155,117.40 × 37,229,965.20
  4. Step 4: Simplify right side
    128,115,853.20x = 7,153,928,333,803,915
  5. Step 5: Solve for x
    x = 7,153,928,333,803,915/128,115,853.20
  6. Step 6: Final answer
    x = 55,839,524.58

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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.