Home / 12,500,569.20-18,722,860.20-7,461,721.20

Finding the Fourth Proportional to 12,500,569.20, 18,722,860.20 and 7,461,721.20

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Solution

The fourth proportional to 12,500,569.20, 18,722,860.20 and 7,461,721.20 is: 11,175,872.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,500,569.20 : 18,722,860.20 = 7,461,721.20 : x
  2. Step 2: Convert to fraction form
    12,500,569.20/18,722,860.20 = 7,461,721.20/x
  3. Step 3: Cross multiply
    12,500,569.20x = 18,722,860.20 × 7,461,721.20
  4. Step 4: Simplify right side
    12,500,569.20x = 139,704,762,878,976.23
  5. Step 5: Solve for x
    x = 139,704,762,878,976.23/12,500,569.20
  6. Step 6: Final answer
    x = 11,175,872.13

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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.