Home / 25,911,995.20-38,867,992.80-21,880,916.80

Finding the Fourth Proportional to 25,911,995.20, 38,867,992.80 and 21,880,916.80

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Solution

The fourth proportional to 25,911,995.20, 38,867,992.80 and 21,880,916.80 is: 32,821,375.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,911,995.20 : 38,867,992.80 = 21,880,916.80 : x
  2. Step 2: Convert to fraction form
    25,911,995.20/38,867,992.80 = 21,880,916.80/x
  3. Step 3: Cross multiply
    25,911,995.20x = 38,867,992.80 × 21,880,916.80
  4. Step 4: Simplify right side
    25,911,995.20x = 850,467,316,639,799
  5. Step 5: Solve for x
    x = 850,467,316,639,799/25,911,995.20
  6. Step 6: Final answer
    x = 32,821,375.20

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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.