Home / 13,440,639.90-20,160,959.85-9,661,503.90

Finding the Fourth Proportional to 13,440,639.90, 20,160,959.85 and 9,661,503.90

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Solution

The fourth proportional to 13,440,639.90, 20,160,959.85 and 9,661,503.90 is: 14,492,255.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440,639.90 : 20,160,959.85 = 9,661,503.90 : x
  2. Step 2: Convert to fraction form
    13,440,639.90/20,160,959.85 = 9,661,503.90/x
  3. Step 3: Cross multiply
    13,440,639.90x = 20,160,959.85 × 9,661,503.90
  4. Step 4: Simplify right side
    13,440,639.90x = 194,785,192,218,518.44
  5. Step 5: Solve for x
    x = 194,785,192,218,518.44/13,440,639.90
  6. Step 6: Final answer
    x = 14,492,255.85

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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.