Home / 12,960,039.20-19,440,058.80-3,983,424.80

Finding the Fourth Proportional to 12,960,039.20, 19,440,058.80 and 3,983,424.80

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Solution

The fourth proportional to 12,960,039.20, 19,440,058.80 and 3,983,424.80 is: 5,975,137.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960,039.20 : 19,440,058.80 = 3,983,424.80 : x
  2. Step 2: Convert to fraction form
    12,960,039.20/19,440,058.80 = 3,983,424.80/x
  3. Step 3: Cross multiply
    12,960,039.20x = 19,440,058.80 × 3,983,424.80
  4. Step 4: Simplify right side
    12,960,039.20x = 77,438,012,337,378.23
  5. Step 5: Solve for x
    x = 77,438,012,337,378.23/12,960,039.20
  6. Step 6: Final answer
    x = 5,975,137.20

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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.