Home / 139,968,006.30-209,952,009.45-88,907,679.90

Finding the Fourth Proportional to 139,968,006.30, 209,952,009.45 and 88,907,679.90

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Solution

The fourth proportional to 139,968,006.30, 209,952,009.45 and 88,907,679.90 is: 133,361,519.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,006.30 : 209,952,009.45 = 88,907,679.90 : x
  2. Step 2: Convert to fraction form
    139,968,006.30/209,952,009.45 = 88,907,679.90/x
  3. Step 3: Cross multiply
    139,968,006.30x = 209,952,009.45 × 88,907,679.90
  4. Step 4: Simplify right side
    139,968,006.30x = 18,666,346,050,542,376
  5. Step 5: Solve for x
    x = 18,666,346,050,542,376/139,968,006.30
  6. Step 6: Final answer
    x = 133,361,519.85

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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.