Home / 827,123,517.20-1,240,685,275.80-821,383,954.40

Finding the Fourth Proportional to 827,123,517.20, 1,240,685,275.80 and 821,383,954.40

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Solution

The fourth proportional to 827,123,517.20, 1,240,685,275.80 and 821,383,954.40 is: 1,232,075,931.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,123,517.20 : 1,240,685,275.80 = 821,383,954.40 : x
  2. Step 2: Convert to fraction form
    827,123,517.20/1,240,685,275.80 = 821,383,954.40/x
  3. Step 3: Cross multiply
    827,123,517.20x = 1,240,685,275.80 × 821,383,954.40
  4. Step 4: Simplify right side
    827,123,517.20x = 1,019,078,978,002,458,496
  5. Step 5: Solve for x
    x = 1,019,078,978,002,458,496/827,123,517.20
  6. Step 6: Final answer
    x = 1,232,075,931.60

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1.5x scale

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.