Home / 747,519,128.20-1,121,268,194.70-338,574,622.60

Finding the Fourth Proportional to 747,519,128.20, 1,121,268,194.70 and 338,574,622.60

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Solution

The fourth proportional to 747,519,128.20, 1,121,268,194.70 and 338,574,622.60 is: 507,857,179.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,519,128.20 : 1,121,268,194.70 = 338,574,622.60 : x
  2. Step 2: Convert to fraction form
    747,519,128.20/1,121,268,194.70 = 338,574,622.60/x
  3. Step 3: Cross multiply
    747,519,128.20x = 1,121,268,194.70 × 338,574,622.60
  4. Step 4: Simplify right side
    747,519,128.20x = 379,632,955,853,935,872
  5. Step 5: Solve for x
    x = 379,632,955,853,935,872/747,519,128.20
  6. Step 6: Final answer
    x = 507,857,179.21

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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.