Home / 157,420,815.77-217,247,296.19-86,861,003.19

Finding the Fourth Proportional to 157,420,815.77, 217,247,296.19 and 86,861,003.19

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Solution

The fourth proportional to 157,420,815.77, 217,247,296.19 and 86,861,003.19 is: 119,871,809.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,420,815.77 : 217,247,296.19 = 86,861,003.19 : x
  2. Step 2: Convert to fraction form
    157,420,815.77/217,247,296.19 = 86,861,003.19/x
  3. Step 3: Cross multiply
    157,420,815.77x = 217,247,296.19 × 86,861,003.19
  4. Step 4: Simplify right side
    157,420,815.77x = 18,870,318,087,378,464
  5. Step 5: Solve for x
    x = 18,870,318,087,378,464/157,420,815.77
  6. Step 6: Final answer
    x = 119,871,809.81

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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.