Home / 605,711,999.40-908,567,999.10-388,033,765.80

Finding the Fourth Proportional to 605,711,999.40, 908,567,999.10 and 388,033,765.80

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Solution

The fourth proportional to 605,711,999.40, 908,567,999.10 and 388,033,765.80 is: 582,050,648.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,711,999.40 : 908,567,999.10 = 388,033,765.80 : x
  2. Step 2: Convert to fraction form
    605,711,999.40/908,567,999.10 = 388,033,765.80/x
  3. Step 3: Cross multiply
    605,711,999.40x = 908,567,999.10 × 388,033,765.80
  4. Step 4: Simplify right side
    605,711,999.40x = 352,555,062,176,144,000
  5. Step 5: Solve for x
    x = 352,555,062,176,144,000/605,711,999.40
  6. Step 6: Final answer
    x = 582,050,648.70

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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.