Home / 12,954,043.20-19,431,064.80-3,977,428.80

Finding the Fourth Proportional to 12,954,043.20, 19,431,064.80 and 3,977,428.80

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Solution

The fourth proportional to 12,954,043.20, 19,431,064.80 and 3,977,428.80 is: 5,966,143.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,954,043.20 : 19,431,064.80 = 3,977,428.80 : x
  2. Step 2: Convert to fraction form
    12,954,043.20/19,431,064.80 = 3,977,428.80/x
  3. Step 3: Cross multiply
    12,954,043.20x = 19,431,064.80 × 3,977,428.80
  4. Step 4: Simplify right side
    12,954,043.20x = 77,285,676,750,186.23
  5. Step 5: Solve for x
    x = 77,285,676,750,186.23/12,954,043.20
  6. Step 6: Final answer
    x = 5,966,143.20

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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.