Home / 138,672,600.80-208,008,901.20-98,361,816.80

Finding the Fourth Proportional to 138,672,600.80, 208,008,901.20 and 98,361,816.80

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Solution

The fourth proportional to 138,672,600.80, 208,008,901.20 and 98,361,816.80 is: 147,542,725.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,672,600.80 : 208,008,901.20 = 98,361,816.80 : x
  2. Step 2: Convert to fraction form
    138,672,600.80/208,008,901.20 = 98,361,816.80/x
  3. Step 3: Cross multiply
    138,672,600.80x = 208,008,901.20 × 98,361,816.80
  4. Step 4: Simplify right side
    138,672,600.80x = 20,460,133,432,603,700
  5. Step 5: Solve for x
    x = 20,460,133,432,603,700/138,672,600.80
  6. Step 6: Final answer
    x = 147,542,725.20

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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.