Home / 125,279,589.49-172,889,765.03-72,355,313.97

Finding the Fourth Proportional to 125,279,589.49, 172,889,765.03 and 72,355,313.97

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Solution

The fourth proportional to 125,279,589.49, 172,889,765.03 and 72,355,313.97 is: 99,852,603.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,279,589.49 : 172,889,765.03 = 72,355,313.97 : x
  2. Step 2: Convert to fraction form
    125,279,589.49/172,889,765.03 = 72,355,313.97/x
  3. Step 3: Cross multiply
    125,279,589.49x = 172,889,765.03 × 72,355,313.97
  4. Step 4: Simplify right side
    125,279,589.49x = 12,509,493,231,126,064
  5. Step 5: Solve for x
    x = 12,509,493,231,126,064/125,279,589.49
  6. Step 6: Final answer
    x = 99,852,603.94

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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.