Home / 14,257,851.80-21,371,031.30-7,872,686.60

Finding the Fourth Proportional to 14,257,851.80, 21,371,031.30 and 7,872,686.60

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Solution

The fourth proportional to 14,257,851.80, 21,371,031.30 and 7,872,686.60 is: 11,800,335.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,257,851.80 : 21,371,031.30 = 7,872,686.60 : x
  2. Step 2: Convert to fraction form
    14,257,851.80/21,371,031.30 = 7,872,686.60/x
  3. Step 3: Cross multiply
    14,257,851.80x = 21,371,031.30 × 7,872,686.60
  4. Step 4: Simplify right side
    14,257,851.80x = 168,247,431,743,690.56
  5. Step 5: Solve for x
    x = 168,247,431,743,690.56/14,257,851.80
  6. Step 6: Final answer
    x = 11,800,335.29

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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.