Home / 838,840,614.57-1,261,019,341.22-778,162,305.04

Finding the Fourth Proportional to 838,840,614.57, 1,261,019,341.22 and 778,162,305.04

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Solution

The fourth proportional to 838,840,614.57, 1,261,019,341.22 and 778,162,305.04 is: 1,169,802,344.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,840,614.57 : 1,261,019,341.22 = 778,162,305.04 : x
  2. Step 2: Convert to fraction form
    838,840,614.57/1,261,019,341.22 = 778,162,305.04/x
  3. Step 3: Cross multiply
    838,840,614.57x = 1,261,019,341.22 × 778,162,305.04
  4. Step 4: Simplify right side
    838,840,614.57x = 981,277,717,256,734,080
  5. Step 5: Solve for x
    x = 981,277,717,256,734,080/838,840,614.57
  6. Step 6: Final answer
    x = 1,169,802,344.11

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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.