Home / 137,239,538.90-206,018,740.65-82,713,692.30

Finding the Fourth Proportional to 137,239,538.90, 206,018,740.65 and 82,713,692.30

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Solution

The fourth proportional to 137,239,538.90, 206,018,740.65 and 82,713,692.30 is: 124,166,627.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,239,538.90 : 206,018,740.65 = 82,713,692.30 : x
  2. Step 2: Convert to fraction form
    137,239,538.90/206,018,740.65 = 82,713,692.30/x
  3. Step 3: Cross multiply
    137,239,538.90x = 206,018,740.65 × 82,713,692.30
  4. Step 4: Simplify right side
    137,239,538.90x = 17,040,570,722,157,602
  5. Step 5: Solve for x
    x = 17,040,570,722,157,602/137,239,538.90
  6. Step 6: Final answer
    x = 124,166,627.63

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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.