Home / 127,972,403.82-176,597,550.27-72,985,975.02

Finding the Fourth Proportional to 127,972,403.82, 176,597,550.27 and 72,985,975.02

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Solution

The fourth proportional to 127,972,403.82, 176,597,550.27 and 72,985,975.02 is: 100,718,154.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,972,403.82 : 176,597,550.27 = 72,985,975.02 : x
  2. Step 2: Convert to fraction form
    127,972,403.82/176,597,550.27 = 72,985,975.02/x
  3. Step 3: Cross multiply
    127,972,403.82x = 176,597,550.27 × 72,985,975.02
  4. Step 4: Simplify right side
    127,972,403.82x = 12,889,144,392,599,414
  5. Step 5: Solve for x
    x = 12,889,144,392,599,414/127,972,403.82
  6. Step 6: Final answer
    x = 100,718,154.91

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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.