Home / 139,972,513.20-209,958,769.80-88,576,263.60

Finding the Fourth Proportional to 139,972,513.20, 209,958,769.80 and 88,576,263.60

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Solution

The fourth proportional to 139,972,513.20, 209,958,769.80 and 88,576,263.60 is: 132,864,395.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,972,513.20 : 209,958,769.80 = 88,576,263.60 : x
  2. Step 2: Convert to fraction form
    139,972,513.20/209,958,769.80 = 88,576,263.60/x
  3. Step 3: Cross multiply
    139,972,513.20x = 209,958,769.80 × 88,576,263.60
  4. Step 4: Simplify right side
    139,972,513.20x = 18,597,363,338,936,520
  5. Step 5: Solve for x
    x = 18,597,363,338,936,520/139,972,513.20
  6. Step 6: Final answer
    x = 132,864,395.40

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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.