Home / 18,190,885.69-25,103,362.78-9,931,049.61

Finding the Fourth Proportional to 18,190,885.69, 25,103,362.78 and 9,931,049.61

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Solution

The fourth proportional to 18,190,885.69, 25,103,362.78 and 9,931,049.61 is: 13,704,815.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,190,885.69 : 25,103,362.78 = 9,931,049.61 : x
  2. Step 2: Convert to fraction form
    18,190,885.69/25,103,362.78 = 9,931,049.61/x
  3. Step 3: Cross multiply
    18,190,885.69x = 25,103,362.78 × 9,931,049.61
  4. Step 4: Simplify right side
    18,190,885.69x = 249,302,741,146,007.50
  5. Step 5: Solve for x
    x = 249,302,741,146,007.50/18,190,885.69
  6. Step 6: Final answer
    x = 13,704,815.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.