Home / 13,906,886.40-20,810,563.20-12,712,492.80

Finding the Fourth Proportional to 13,906,886.40, 20,810,563.20 and 12,712,492.80

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Solution

The fourth proportional to 13,906,886.40, 20,810,563.20 and 12,712,492.80 is: 19,023,246.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,906,886.40 : 20,810,563.20 = 12,712,492.80 : x
  2. Step 2: Convert to fraction form
    13,906,886.40/20,810,563.20 = 12,712,492.80/x
  3. Step 3: Cross multiply
    13,906,886.40x = 20,810,563.20 × 12,712,492.80
  4. Step 4: Simplify right side
    13,906,886.40x = 264,554,134,843,944.97
  5. Step 5: Solve for x
    x = 264,554,134,843,944.97/13,906,886.40
  6. Step 6: Final answer
    x = 19,023,246.99

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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.