Home / 128,304,051.20-192,456,076.80-37,427,640.20

Finding the Fourth Proportional to 128,304,051.20, 192,456,076.80 and 37,427,640.20

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Solution

The fourth proportional to 128,304,051.20, 192,456,076.80 and 37,427,640.20 is: 56,141,460.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,304,051.20 : 192,456,076.80 = 37,427,640.20 : x
  2. Step 2: Convert to fraction form
    128,304,051.20/192,456,076.80 = 37,427,640.20/x
  3. Step 3: Cross multiply
    128,304,051.20x = 192,456,076.80 × 37,427,640.20
  4. Step 4: Simplify right side
    128,304,051.20x = 7,203,176,796,773,968
  5. Step 5: Solve for x
    x = 7,203,176,796,773,968/128,304,051.20
  6. Step 6: Final answer
    x = 56,141,460.30

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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.