Home / 142,268,730.24-196,330,809.12-77,078,634.24

Finding the Fourth Proportional to 142,268,730.24, 196,330,809.12 and 77,078,634.24

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Solution

The fourth proportional to 142,268,730.24, 196,330,809.12 and 77,078,634.24 is: 106,368,494.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,268,730.24 : 196,330,809.12 = 77,078,634.24 : x
  2. Step 2: Convert to fraction form
    142,268,730.24/196,330,809.12 = 77,078,634.24/x
  3. Step 3: Cross multiply
    142,268,730.24x = 196,330,809.12 × 77,078,634.24
  4. Step 4: Simplify right side
    142,268,730.24x = 15,132,910,626,203,736
  5. Step 5: Solve for x
    x = 15,132,910,626,203,736/142,268,730.24
  6. Step 6: Final answer
    x = 106,368,494.33

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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.