Home / 18,492,173.59-25,517,461.28-12,519,430.11

Finding the Fourth Proportional to 18,492,173.59, 25,517,461.28 and 12,519,430.11

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Solution

The fourth proportional to 18,492,173.59, 25,517,461.28 and 12,519,430.11 is: 17,275,636.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,492,173.59 : 25,517,461.28 = 12,519,430.11 : x
  2. Step 2: Convert to fraction form
    18,492,173.59/25,517,461.28 = 12,519,430.11/x
  3. Step 3: Cross multiply
    18,492,173.59x = 25,517,461.28 × 12,519,430.11
  4. Step 4: Simplify right side
    18,492,173.59x = 319,464,072,889,406.69
  5. Step 5: Solve for x
    x = 319,464,072,889,406.69/18,492,173.59
  6. Step 6: Final answer
    x = 17,275,636.71

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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.