Home / 15,043,957.10-20,760,078.54-8,168,281.82

Finding the Fourth Proportional to 15,043,957.10, 20,760,078.54 and 8,168,281.82

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Solution

The fourth proportional to 15,043,957.10, 20,760,078.54 and 8,168,281.82 is: 11,271,912.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,043,957.10 : 20,760,078.54 = 8,168,281.82 : x
  2. Step 2: Convert to fraction form
    15,043,957.10/20,760,078.54 = 8,168,281.82/x
  3. Step 3: Cross multiply
    15,043,957.10x = 20,760,078.54 × 8,168,281.82
  4. Step 4: Simplify right side
    15,043,957.10x = 169,574,172,120,054.16
  5. Step 5: Solve for x
    x = 169,574,172,120,054.16/15,043,957.10
  6. Step 6: Final answer
    x = 11,271,912.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.