Home / 14,016,028.80-21,024,043.20-12,280,425.60

Finding the Fourth Proportional to 14,016,028.80, 21,024,043.20 and 12,280,425.60

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Solution

The fourth proportional to 14,016,028.80, 21,024,043.20 and 12,280,425.60 is: 18,420,638.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,016,028.80 : 21,024,043.20 = 12,280,425.60 : x
  2. Step 2: Convert to fraction form
    14,016,028.80/21,024,043.20 = 12,280,425.60/x
  3. Step 3: Cross multiply
    14,016,028.80x = 21,024,043.20 × 12,280,425.60
  4. Step 4: Simplify right side
    14,016,028.80x = 258,184,198,328,785.91
  5. Step 5: Solve for x
    x = 258,184,198,328,785.91/14,016,028.80
  6. Step 6: Final answer
    x = 18,420,638.40

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1.5x scale

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.