Home / 12,481,240.80-18,721,861.20-10,465,701.60

Finding the Fourth Proportional to 12,481,240.80, 18,721,861.20 and 10,465,701.60

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Solution

The fourth proportional to 12,481,240.80, 18,721,861.20 and 10,465,701.60 is: 15,698,552.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481,240.80 : 18,721,861.20 = 10,465,701.60 : x
  2. Step 2: Convert to fraction form
    12,481,240.80/18,721,861.20 = 10,465,701.60/x
  3. Step 3: Cross multiply
    12,481,240.80x = 18,721,861.20 × 10,465,701.60
  4. Step 4: Simplify right side
    12,481,240.80x = 195,937,412,715,817.91
  5. Step 5: Solve for x
    x = 195,937,412,715,817.91/12,481,240.80
  6. Step 6: Final answer
    x = 15,698,552.40

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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.