Home / 13,440,416.80-20,160,625.20-4,921,031.20

Finding the Fourth Proportional to 13,440,416.80, 20,160,625.20 and 4,921,031.20

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Solution

The fourth proportional to 13,440,416.80, 20,160,625.20 and 4,921,031.20 is: 7,381,546.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440,416.80 : 20,160,625.20 = 4,921,031.20 : x
  2. Step 2: Convert to fraction form
    13,440,416.80/20,160,625.20 = 4,921,031.20/x
  3. Step 3: Cross multiply
    13,440,416.80x = 20,160,625.20 × 4,921,031.20
  4. Step 4: Simplify right side
    13,440,416.80x = 99,211,065,620,706.23
  5. Step 5: Solve for x
    x = 99,211,065,620,706.23/13,440,416.80
  6. Step 6: Final answer
    x = 7,381,546.80

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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.