Home / 1,247,072,014.80-1,871,023,454.52-418,107,685.20

Finding the Fourth Proportional to 1,247,072,014.80, 1,871,023,454.52 and 418,107,685.20

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Solution

The fourth proportional to 1,247,072,014.80, 1,871,023,454.52 and 418,107,685.20 is: 627,300,810.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,072,014.80 : 1,871,023,454.52 = 418,107,685.20 : x
  2. Step 2: Convert to fraction form
    1,247,072,014.80/1,871,023,454.52 = 418,107,685.20/x
  3. Step 3: Cross multiply
    1,247,072,014.80x = 1,871,023,454.52 × 418,107,685.20
  4. Step 4: Simplify right side
    1,247,072,014.80x = 782,289,285,524,264,704
  5. Step 5: Solve for x
    x = 782,289,285,524,264,704/1,247,072,014.80
  6. Step 6: Final answer
    x = 627,300,810.41

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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.