Home / 21,712,643.20-32,540,971.20-16,638,803.20

Finding the Fourth Proportional to 21,712,643.20, 32,540,971.20 and 16,638,803.20

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Solution

The fourth proportional to 21,712,643.20, 32,540,971.20 and 16,638,803.20 is: 24,936,752.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,712,643.20 : 32,540,971.20 = 16,638,803.20 : x
  2. Step 2: Convert to fraction form
    21,712,643.20/32,540,971.20 = 16,638,803.20/x
  3. Step 3: Cross multiply
    21,712,643.20x = 32,540,971.20 × 16,638,803.20
  4. Step 4: Simplify right side
    21,712,643.20x = 541,442,815,733,667.81
  5. Step 5: Solve for x
    x = 541,442,815,733,667.81/21,712,643.20
  6. Step 6: Final answer
    x = 24,936,752.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.