Home / 726,863,722.80-1,090,295,584.20-338,557,498.80

Finding the Fourth Proportional to 726,863,722.80, 1,090,295,584.20 and 338,557,498.80

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Solution

The fourth proportional to 726,863,722.80, 1,090,295,584.20 and 338,557,498.80 is: 507,836,248.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,863,722.80 : 1,090,295,584.20 = 338,557,498.80 : x
  2. Step 2: Convert to fraction form
    726,863,722.80/1,090,295,584.20 = 338,557,498.80/x
  3. Step 3: Cross multiply
    726,863,722.80x = 1,090,295,584.20 × 338,557,498.80
  4. Step 4: Simplify right side
    726,863,722.80x = 369,127,745,939,436,800
  5. Step 5: Solve for x
    x = 369,127,745,939,436,800/726,863,722.80
  6. Step 6: Final answer
    x = 507,836,248.20

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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.