Home / 12,285,740.80-18,428,611.20-9,894,256.30

Finding the Fourth Proportional to 12,285,740.80, 18,428,611.20 and 9,894,256.30

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Solution

The fourth proportional to 12,285,740.80, 18,428,611.20 and 9,894,256.30 is: 14,841,384.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,285,740.80 : 18,428,611.20 = 9,894,256.30 : x
  2. Step 2: Convert to fraction form
    12,285,740.80/18,428,611.20 = 9,894,256.30/x
  3. Step 3: Cross multiply
    12,285,740.80x = 18,428,611.20 × 9,894,256.30
  4. Step 4: Simplify right side
    12,285,740.80x = 182,337,402,465,850.56
  5. Step 5: Solve for x
    x = 182,337,402,465,850.56/12,285,740.80
  6. Step 6: Final answer
    x = 14,841,384.45

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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.