Home / 12,636,267.40-18,954,401.10-12,447,310.60

Finding the Fourth Proportional to 12,636,267.40, 18,954,401.10 and 12,447,310.60

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Solution

The fourth proportional to 12,636,267.40, 18,954,401.10 and 12,447,310.60 is: 18,670,965.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,636,267.40 : 18,954,401.10 = 12,447,310.60 : x
  2. Step 2: Convert to fraction form
    12,636,267.40/18,954,401.10 = 12,447,310.60/x
  3. Step 3: Cross multiply
    12,636,267.40x = 18,954,401.10 × 12,447,310.60
  4. Step 4: Simplify right side
    12,636,267.40x = 235,931,317,728,681.66
  5. Step 5: Solve for x
    x = 235,931,317,728,681.66/12,636,267.40
  6. Step 6: Final answer
    x = 18,670,965.90

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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.