Home / 18,745,929.68-25,858,071.28-12,380,823.45

Finding the Fourth Proportional to 18,745,929.68, 25,858,071.28 and 12,380,823.45

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Solution

The fourth proportional to 18,745,929.68, 25,858,071.28 and 12,380,823.45 is: 17,078,065.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,745,929.68 : 25,858,071.28 = 12,380,823.45 : x
  2. Step 2: Convert to fraction form
    18,745,929.68/25,858,071.28 = 12,380,823.45/x
  3. Step 3: Cross multiply
    18,745,929.68x = 25,858,071.28 × 12,380,823.45
  4. Step 4: Simplify right side
    18,745,929.68x = 320,144,215,213,291.38
  5. Step 5: Solve for x
    x = 320,144,215,213,291.38/18,745,929.68
  6. Step 6: Final answer
    x = 17,078,065.52

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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.