Home / 12,329,672.80-18,494,509.20-7,552,098.40

Finding the Fourth Proportional to 12,329,672.80, 18,494,509.20 and 7,552,098.40

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Solution

The fourth proportional to 12,329,672.80, 18,494,509.20 and 7,552,098.40 is: 11,328,147.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,329,672.80 : 18,494,509.20 = 7,552,098.40 : x
  2. Step 2: Convert to fraction form
    12,329,672.80/18,494,509.20 = 7,552,098.40/x
  3. Step 3: Cross multiply
    12,329,672.80x = 18,494,509.20 × 7,552,098.40
  4. Step 4: Simplify right side
    12,329,672.80x = 139,672,353,338,105.28
  5. Step 5: Solve for x
    x = 139,672,353,338,105.28/12,329,672.80
  6. Step 6: Final answer
    x = 11,328,147.60

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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.