Home / 777,955,991.19-1,073,582,480.25-420,723,760.08

Finding the Fourth Proportional to 777,955,991.19, 1,073,582,480.25 and 420,723,760.08

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Solution

The fourth proportional to 777,955,991.19, 1,073,582,480.25 and 420,723,760.08 is: 580,600,526.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,955,991.19 : 1,073,582,480.25 = 420,723,760.08 : x
  2. Step 2: Convert to fraction form
    777,955,991.19/1,073,582,480.25 = 420,723,760.08/x
  3. Step 3: Cross multiply
    777,955,991.19x = 1,073,582,480.25 × 420,723,760.08
  4. Step 4: Simplify right side
    777,955,991.19x = 451,681,657,846,792,320
  5. Step 5: Solve for x
    x = 451,681,657,846,792,320/777,955,991.19
  6. Step 6: Final answer
    x = 580,600,526.20

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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.