Home / 21,540,073.90-29,725,261.21-11,750,515.50

Finding the Fourth Proportional to 21,540,073.90, 29,725,261.21 and 11,750,515.50

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Solution

The fourth proportional to 21,540,073.90, 29,725,261.21 and 11,750,515.50 is: 16,215,689.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,540,073.90 : 29,725,261.21 = 11,750,515.50 : x
  2. Step 2: Convert to fraction form
    21,540,073.90/29,725,261.21 = 11,750,515.50/x
  3. Step 3: Cross multiply
    21,540,073.90x = 29,725,261.21 × 11,750,515.50
  4. Step 4: Simplify right side
    21,540,073.90x = 349,287,142,589,653.75
  5. Step 5: Solve for x
    x = 349,287,142,589,653.75/21,540,073.90
  6. Step 6: Final answer
    x = 16,215,689.15

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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.