Home / 125,168,845.31-187,780,134.66-42,178,796.41

Finding the Fourth Proportional to 125,168,845.31, 187,780,134.66 and 42,178,796.41

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Solution

The fourth proportional to 125,168,845.31, 187,780,134.66 and 42,178,796.41 is: 63,277,248.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,168,845.31 : 187,780,134.66 = 42,178,796.41 : x
  2. Step 2: Convert to fraction form
    125,168,845.31/187,780,134.66 = 42,178,796.41/x
  3. Step 3: Cross multiply
    125,168,845.31x = 187,780,134.66 × 42,178,796.41
  4. Step 4: Simplify right side
    125,168,845.31x = 7,920,340,069,038,904
  5. Step 5: Solve for x
    x = 7,920,340,069,038,904/125,168,845.31
  6. Step 6: Final answer
    x = 63,277,248.02

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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.