Home / 12,486,787.74-18,731,428.20-3,389,031.77

Finding the Fourth Proportional to 12,486,787.74, 18,731,428.20 and 3,389,031.77

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Solution

The fourth proportional to 12,486,787.74, 18,731,428.20 and 3,389,031.77 is: 5,083,885.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,486,787.74 : 18,731,428.20 = 3,389,031.77 : x
  2. Step 2: Convert to fraction form
    12,486,787.74/18,731,428.20 = 3,389,031.77/x
  3. Step 3: Cross multiply
    12,486,787.74x = 18,731,428.20 × 3,389,031.77
  4. Step 4: Simplify right side
    12,486,787.74x = 63,481,405,173,616.77
  5. Step 5: Solve for x
    x = 63,481,405,173,616.77/12,486,787.74
  6. Step 6: Final answer
    x = 5,083,885.98

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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.