Home / 20,565,261.20-30,847,891.80-17,280,678.80

Finding the Fourth Proportional to 20,565,261.20, 30,847,891.80 and 17,280,678.80

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Solution

The fourth proportional to 20,565,261.20, 30,847,891.80 and 17,280,678.80 is: 25,921,018.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,565,261.20 : 30,847,891.80 = 17,280,678.80 : x
  2. Step 2: Convert to fraction form
    20,565,261.20/30,847,891.80 = 17,280,678.80/x
  3. Step 3: Cross multiply
    20,565,261.20x = 30,847,891.80 × 17,280,678.80
  4. Step 4: Simplify right side
    20,565,261.20x = 533,072,509,852,953.88
  5. Step 5: Solve for x
    x = 533,072,509,852,953.88/20,565,261.20
  6. Step 6: Final answer
    x = 25,921,018.20

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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.