Home / 15,280,257.90-21,086,315.97-8,404,739.94

Finding the Fourth Proportional to 15,280,257.90, 21,086,315.97 and 8,404,739.94

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Solution

The fourth proportional to 15,280,257.90, 21,086,315.97 and 8,404,739.94 is: 11,598,299.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,280,257.90 : 21,086,315.97 = 8,404,739.94 : x
  2. Step 2: Convert to fraction form
    15,280,257.90/21,086,315.97 = 8,404,739.94/x
  3. Step 3: Cross multiply
    15,280,257.90x = 21,086,315.97 × 8,404,739.94
  4. Step 4: Simplify right side
    15,280,257.90x = 177,225,002,020,518.81
  5. Step 5: Solve for x
    x = 177,225,002,020,518.81/15,280,257.90
  6. Step 6: Final answer
    x = 11,598,299.14

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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.