Home / 142,899,245.28-214,150,288.32-74,605,708.80

Finding the Fourth Proportional to 142,899,245.28, 214,150,288.32 and 74,605,708.80

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Solution

The fourth proportional to 142,899,245.28, 214,150,288.32 and 74,605,708.80 is: 111,804,887.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,899,245.28 : 214,150,288.32 = 74,605,708.80 : x
  2. Step 2: Convert to fraction form
    142,899,245.28/214,150,288.32 = 74,605,708.80/x
  3. Step 3: Cross multiply
    142,899,245.28x = 214,150,288.32 × 74,605,708.80
  4. Step 4: Simplify right side
    142,899,245.28x = 15,976,834,049,837,960
  5. Step 5: Solve for x
    x = 15,976,834,049,837,960/142,899,245.28
  6. Step 6: Final answer
    x = 111,804,887.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.