Home / 398,591,703.60-597,887,555.40-125,962,470.60

Finding the Fourth Proportional to 398,591,703.60, 597,887,555.40 and 125,962,470.60

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Solution

The fourth proportional to 398,591,703.60, 597,887,555.40 and 125,962,470.60 is: 188,943,705.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,591,703.60 : 597,887,555.40 = 125,962,470.60 : x
  2. Step 2: Convert to fraction form
    398,591,703.60/597,887,555.40 = 125,962,470.60/x
  3. Step 3: Cross multiply
    398,591,703.60x = 597,887,555.40 × 125,962,470.60
  4. Step 4: Simplify right side
    398,591,703.60x = 75,311,393,619,178,368
  5. Step 5: Solve for x
    x = 75,311,393,619,178,368/398,591,703.60
  6. Step 6: Final answer
    x = 188,943,705.90

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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.