Home / 12,459,916.90-18,660,384.15-8,449,113.70

Finding the Fourth Proportional to 12,459,916.90, 18,660,384.15 and 8,449,113.70

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Solution

The fourth proportional to 12,459,916.90, 18,660,384.15 and 8,449,113.70 is: 12,653,672.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459,916.90 : 18,660,384.15 = 8,449,113.70 : x
  2. Step 2: Convert to fraction form
    12,459,916.90/18,660,384.15 = 8,449,113.70/x
  3. Step 3: Cross multiply
    12,459,916.90x = 18,660,384.15 × 8,449,113.70
  4. Step 4: Simplify right side
    12,459,916.90x = 157,663,707,369,027.84
  5. Step 5: Solve for x
    x = 157,663,707,369,027.84/12,459,916.90
  6. Step 6: Final answer
    x = 12,653,672.46

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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.