Home / 399,528,021.60-599,292,032.40-126,926,344.80

Finding the Fourth Proportional to 399,528,021.60, 599,292,032.40 and 126,926,344.80

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Solution

The fourth proportional to 399,528,021.60, 599,292,032.40 and 126,926,344.80 is: 190,389,517.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,528,021.60 : 599,292,032.40 = 126,926,344.80 : x
  2. Step 2: Convert to fraction form
    399,528,021.60/599,292,032.40 = 126,926,344.80/x
  3. Step 3: Cross multiply
    399,528,021.60x = 599,292,032.40 × 126,926,344.80
  4. Step 4: Simplify right side
    399,528,021.60x = 76,065,947,140,295,168
  5. Step 5: Solve for x
    x = 76,065,947,140,295,168/399,528,021.60
  6. Step 6: Final answer
    x = 190,389,517.20

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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.