Home / 839,976,999.40-1,259,965,499.10-532,271,348.20

Finding the Fourth Proportional to 839,976,999.40, 1,259,965,499.10 and 532,271,348.20

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Solution

The fourth proportional to 839,976,999.40, 1,259,965,499.10 and 532,271,348.20 is: 798,407,022.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,976,999.40 : 1,259,965,499.10 = 532,271,348.20 : x
  2. Step 2: Convert to fraction form
    839,976,999.40/1,259,965,499.10 = 532,271,348.20/x
  3. Step 3: Cross multiply
    839,976,999.40x = 1,259,965,499.10 × 532,271,348.20
  4. Step 4: Simplify right side
    839,976,999.40x = 670,643,534,891,442,816
  5. Step 5: Solve for x
    x = 670,643,534,891,442,816/839,976,999.40
  6. Step 6: Final answer
    x = 798,407,022.30

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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.