Home / 21,553,719.20-32,330,578.80-20,490,837.20

Finding the Fourth Proportional to 21,553,719.20, 32,330,578.80 and 20,490,837.20

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Solution

The fourth proportional to 21,553,719.20, 32,330,578.80 and 20,490,837.20 is: 30,736,255.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,553,719.20 : 32,330,578.80 = 20,490,837.20 : x
  2. Step 2: Convert to fraction form
    21,553,719.20/32,330,578.80 = 20,490,837.20/x
  3. Step 3: Cross multiply
    21,553,719.20x = 32,330,578.80 × 20,490,837.20
  4. Step 4: Simplify right side
    21,553,719.20x = 662,480,626,772,571.38
  5. Step 5: Solve for x
    x = 662,480,626,772,571.38/21,553,719.20
  6. Step 6: Final answer
    x = 30,736,255.80

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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.