Home / 18,867,701.40-28,301,552.10-12,821,083.80

Finding the Fourth Proportional to 18,867,701.40, 28,301,552.10 and 12,821,083.80

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Solution

The fourth proportional to 18,867,701.40, 28,301,552.10 and 12,821,083.80 is: 19,231,625.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,867,701.40 : 28,301,552.10 = 12,821,083.80 : x
  2. Step 2: Convert to fraction form
    18,867,701.40/28,301,552.10 = 12,821,083.80/x
  3. Step 3: Cross multiply
    18,867,701.40x = 28,301,552.10 × 12,821,083.80
  4. Step 4: Simplify right side
    18,867,701.40x = 362,856,571,144,166
  5. Step 5: Solve for x
    x = 362,856,571,144,166/18,867,701.40
  6. Step 6: Final answer
    x = 19,231,625.70

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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.