Home / 128,304,003.60-192,456,005.40-120,745,731.60

Finding the Fourth Proportional to 128,304,003.60, 192,456,005.40 and 120,745,731.60

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Solution

The fourth proportional to 128,304,003.60, 192,456,005.40 and 120,745,731.60 is: 181,118,597.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,304,003.60 : 192,456,005.40 = 120,745,731.60 : x
  2. Step 2: Convert to fraction form
    128,304,003.60/192,456,005.40 = 120,745,731.60/x
  3. Step 3: Cross multiply
    128,304,003.60x = 192,456,005.40 × 120,745,731.60
  4. Step 4: Simplify right side
    128,304,003.60x = 23,238,241,172,836,552
  5. Step 5: Solve for x
    x = 23,238,241,172,836,552/128,304,003.60
  6. Step 6: Final answer
    x = 181,118,597.40

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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.