Home / 101,285,754.13-139,731,540.38-67,806,019.86

Finding the Fourth Proportional to 101,285,754.13, 139,731,540.38 and 67,806,019.86

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Solution

The fourth proportional to 101,285,754.13, 139,731,540.38 and 67,806,019.86 is: 93,543,654.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,285,754.13 : 139,731,540.38 = 67,806,019.86 : x
  2. Step 2: Convert to fraction form
    101,285,754.13/139,731,540.38 = 67,806,019.86/x
  3. Step 3: Cross multiply
    101,285,754.13x = 139,731,540.38 × 67,806,019.86
  4. Step 4: Simplify right side
    101,285,754.13x = 9,474,639,602,074,672
  5. Step 5: Solve for x
    x = 9,474,639,602,074,672/101,285,754.13
  6. Step 6: Final answer
    x = 93,543,654.62

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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.