Home / 19,959,121.20-29,938,681.80-12,400,849.20

Finding the Fourth Proportional to 19,959,121.20, 29,938,681.80 and 12,400,849.20

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Solution

The fourth proportional to 19,959,121.20, 29,938,681.80 and 12,400,849.20 is: 18,601,273.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,959,121.20 : 29,938,681.80 = 12,400,849.20 : x
  2. Step 2: Convert to fraction form
    19,959,121.20/29,938,681.80 = 12,400,849.20/x
  3. Step 3: Cross multiply
    19,959,121.20x = 29,938,681.80 × 12,400,849.20
  4. Step 4: Simplify right side
    19,959,121.20x = 371,265,078,248,584.56
  5. Step 5: Solve for x
    x = 371,265,078,248,584.56/19,959,121.20
  6. Step 6: Final answer
    x = 18,601,273.80

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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.