Home / 21,150,589.50-29,187,988.47-11,492,797.50

Finding the Fourth Proportional to 21,150,589.50, 29,187,988.47 and 11,492,797.50

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Solution

The fourth proportional to 21,150,589.50, 29,187,988.47 and 11,492,797.50 is: 15,860,155.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,150,589.50 : 29,187,988.47 = 11,492,797.50 : x
  2. Step 2: Convert to fraction form
    21,150,589.50/29,187,988.47 = 11,492,797.50/x
  3. Step 3: Cross multiply
    21,150,589.50x = 29,187,988.47 × 11,492,797.50
  4. Step 4: Simplify right side
    21,150,589.50x = 335,451,640,918,044.81
  5. Step 5: Solve for x
    x = 335,451,640,918,044.81/21,150,589.50
  6. Step 6: Final answer
    x = 15,860,155.62

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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.