Home / 125,168,857.88-187,780,153.50-42,178,808.97

Finding the Fourth Proportional to 125,168,857.88, 187,780,153.50 and 42,178,808.97

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Solution

The fourth proportional to 125,168,857.88, 187,780,153.50 and 42,178,808.97 is: 63,277,266.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,168,857.88 : 187,780,153.50 = 42,178,808.97 : x
  2. Step 2: Convert to fraction form
    125,168,857.88/187,780,153.50 = 42,178,808.97/x
  3. Step 3: Cross multiply
    125,168,857.88x = 187,780,153.50 × 42,178,808.97
  4. Step 4: Simplify right side
    125,168,857.88x = 7,920,343,222,833,777
  5. Step 5: Solve for x
    x = 7,920,343,222,833,777/125,168,857.88
  6. Step 6: Final answer
    x = 63,277,266.86

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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.