Home / 28,006,481.20-42,009,721.80-8,839,175.80

Finding the Fourth Proportional to 28,006,481.20, 42,009,721.80 and 8,839,175.80

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Solution

The fourth proportional to 28,006,481.20, 42,009,721.80 and 8,839,175.80 is: 13,258,763.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,006,481.20 : 42,009,721.80 = 8,839,175.80 : x
  2. Step 2: Convert to fraction form
    28,006,481.20/42,009,721.80 = 8,839,175.80/x
  3. Step 3: Cross multiply
    28,006,481.20x = 42,009,721.80 × 8,839,175.80
  4. Step 4: Simplify right side
    28,006,481.20x = 371,331,316,299,292.44
  5. Step 5: Solve for x
    x = 371,331,316,299,292.44/28,006,481.20
  6. Step 6: Final answer
    x = 13,258,763.70

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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.