Home / 139,509,390.19-209,072,766.52-88,299,997.87

Finding the Fourth Proportional to 139,509,390.19, 209,072,766.52 and 88,299,997.87

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Solution

The fourth proportional to 139,509,390.19, 209,072,766.52 and 88,299,997.87 is: 132,328,904.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,509,390.19 : 209,072,766.52 = 88,299,997.87 : x
  2. Step 2: Convert to fraction form
    139,509,390.19/209,072,766.52 = 88,299,997.87/x
  3. Step 3: Cross multiply
    139,509,390.19x = 209,072,766.52 × 88,299,997.87
  4. Step 4: Simplify right side
    139,509,390.19x = 18,461,124,838,391,008
  5. Step 5: Solve for x
    x = 18,461,124,838,391,008/139,509,390.19
  6. Step 6: Final answer
    x = 132,328,904.98

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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.