Home / 402,422,079.80-603,632,365.86-126,094,448.36

Finding the Fourth Proportional to 402,422,079.80, 603,632,365.86 and 126,094,448.36

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Solution

The fourth proportional to 402,422,079.80, 603,632,365.86 and 126,094,448.36 is: 189,141,436.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,422,079.80 : 603,632,365.86 = 126,094,448.36 : x
  2. Step 2: Convert to fraction form
    402,422,079.80/603,632,365.86 = 126,094,448.36/x
  3. Step 3: Cross multiply
    402,422,079.80x = 603,632,365.86 × 126,094,448.36
  4. Step 4: Simplify right side
    402,422,079.80x = 76,114,690,185,358,400
  5. Step 5: Solve for x
    x = 76,114,690,185,358,400/402,422,079.80
  6. Step 6: Final answer
    x = 189,141,436.33

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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.