Home / 399,177,999.60-598,766,999.40-140,391,164.40

Finding the Fourth Proportional to 399,177,999.60, 598,766,999.40 and 140,391,164.40

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Solution

The fourth proportional to 399,177,999.60, 598,766,999.40 and 140,391,164.40 is: 210,586,746.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,177,999.60 : 598,766,999.40 = 140,391,164.40 : x
  2. Step 2: Convert to fraction form
    399,177,999.60/598,766,999.40 = 140,391,164.40/x
  3. Step 3: Cross multiply
    399,177,999.60x = 598,766,999.40 × 140,391,164.40
  4. Step 4: Simplify right side
    399,177,999.60x = 84,061,596,250,060,096
  5. Step 5: Solve for x
    x = 84,061,596,250,060,096/399,177,999.60
  6. Step 6: Final answer
    x = 210,586,746.60

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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.