Home / 839,813,999.80-1,259,720,999.70-532,192,329.40

Finding the Fourth Proportional to 839,813,999.80, 1,259,720,999.70 and 532,192,329.40

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Solution

The fourth proportional to 839,813,999.80, 1,259,720,999.70 and 532,192,329.40 is: 798,288,494.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,813,999.80 : 1,259,720,999.70 = 532,192,329.40 : x
  2. Step 2: Convert to fraction form
    839,813,999.80/1,259,720,999.70 = 532,192,329.40/x
  3. Step 3: Cross multiply
    839,813,999.80x = 1,259,720,999.70 × 532,192,329.40
  4. Step 4: Simplify right side
    839,813,999.80x = 670,413,853,224,439,680
  5. Step 5: Solve for x
    x = 670,413,853,224,439,680/839,813,999.80
  6. Step 6: Final answer
    x = 798,288,494.10

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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.