Home / 747,306,097.20-1,120,959,145.80-398,627,657.10

Finding the Fourth Proportional to 747,306,097.20, 1,120,959,145.80 and 398,627,657.10

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Solution

The fourth proportional to 747,306,097.20, 1,120,959,145.80 and 398,627,657.10 is: 597,941,485.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,306,097.20 : 1,120,959,145.80 = 398,627,657.10 : x
  2. Step 2: Convert to fraction form
    747,306,097.20/1,120,959,145.80 = 398,627,657.10/x
  3. Step 3: Cross multiply
    747,306,097.20x = 1,120,959,145.80 × 398,627,657.10
  4. Step 4: Simplify right side
    747,306,097.20x = 446,845,317,995,071,296
  5. Step 5: Solve for x
    x = 446,845,317,995,071,296/747,306,097.20
  6. Step 6: Final answer
    x = 597,941,485.65

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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.