Home / 142,155,755.52-196,141,200.48-86,400,202.56

Finding the Fourth Proportional to 142,155,755.52, 196,141,200.48 and 86,400,202.56

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Solution

The fourth proportional to 142,155,755.52, 196,141,200.48 and 86,400,202.56 is: 119,211,771.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,155,755.52 : 196,141,200.48 = 86,400,202.56 : x
  2. Step 2: Convert to fraction form
    142,155,755.52/196,141,200.48 = 86,400,202.56/x
  3. Step 3: Cross multiply
    142,155,755.52x = 196,141,200.48 × 86,400,202.56
  4. Step 4: Simplify right side
    142,155,755.52x = 16,946,639,451,833,568
  5. Step 5: Solve for x
    x = 16,946,639,451,833,568/142,155,755.52
  6. Step 6: Final answer
    x = 119,211,771.55

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1.5x scale

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.