Home / 399,528,052.60-599,292,078.90-126,926,375.80

Finding the Fourth Proportional to 399,528,052.60, 599,292,078.90 and 126,926,375.80

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Solution

The fourth proportional to 399,528,052.60, 599,292,078.90 and 126,926,375.80 is: 190,389,563.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,528,052.60 : 599,292,078.90 = 126,926,375.80 : x
  2. Step 2: Convert to fraction form
    399,528,052.60/599,292,078.90 = 126,926,375.80/x
  3. Step 3: Cross multiply
    399,528,052.60x = 599,292,078.90 × 126,926,375.80
  4. Step 4: Simplify right side
    399,528,052.60x = 76,065,971,620,424,640
  5. Step 5: Solve for x
    x = 76,065,971,620,424,640/399,528,052.60
  6. Step 6: Final answer
    x = 190,389,563.70

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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.