Home / 193,104,380.80-289,656,571.20-71,920,086.40

Finding the Fourth Proportional to 193,104,380.80, 289,656,571.20 and 71,920,086.40

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Solution

The fourth proportional to 193,104,380.80, 289,656,571.20 and 71,920,086.40 is: 107,880,129.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,104,380.80 : 289,656,571.20 = 71,920,086.40 : x
  2. Step 2: Convert to fraction form
    193,104,380.80/289,656,571.20 = 71,920,086.40/x
  3. Step 3: Cross multiply
    193,104,380.80x = 289,656,571.20 × 71,920,086.40
  4. Step 4: Simplify right side
    193,104,380.80x = 20,832,125,627,031,752
  5. Step 5: Solve for x
    x = 20,832,125,627,031,752/193,104,380.80
  6. Step 6: Final answer
    x = 107,880,129.60

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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.