Home / 721,822,816.10-996,089,713.05-408,550,304.02

Finding the Fourth Proportional to 721,822,816.10, 996,089,713.05 and 408,550,304.02

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Solution

The fourth proportional to 721,822,816.10, 996,089,713.05 and 408,550,304.02 is: 563,784,831.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,822,816.10 : 996,089,713.05 = 408,550,304.02 : x
  2. Step 2: Convert to fraction form
    721,822,816.10/996,089,713.05 = 408,550,304.02/x
  3. Step 3: Cross multiply
    721,822,816.10x = 996,089,713.05 × 408,550,304.02
  4. Step 4: Simplify right side
    721,822,816.10x = 406,952,755,097,772,032
  5. Step 5: Solve for x
    x = 406,952,755,097,772,032/721,822,816.10
  6. Step 6: Final answer
    x = 563,784,831.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.