Home / 139,656,385.56-192,749,264.48-80,955,769.80

Finding the Fourth Proportional to 139,656,385.56, 192,749,264.48 and 80,955,769.80

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Solution

The fourth proportional to 139,656,385.56, 192,749,264.48 and 80,955,769.80 is: 111,732,557.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,656,385.56 : 192,749,264.48 = 80,955,769.80 : x
  2. Step 2: Convert to fraction form
    139,656,385.56/192,749,264.48 = 80,955,769.80/x
  3. Step 3: Cross multiply
    139,656,385.56x = 192,749,264.48 × 80,955,769.80
  4. Step 4: Simplify right side
    139,656,385.56x = 15,604,165,084,362,196
  5. Step 5: Solve for x
    x = 15,604,165,084,362,196/139,656,385.56
  6. Step 6: Final answer
    x = 111,732,557.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.