Home / 18,693,046.80-28,034,904.60-7,176,013.20

Finding the Fourth Proportional to 18,693,046.80, 28,034,904.60 and 7,176,013.20

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Solution

The fourth proportional to 18,693,046.80, 28,034,904.60 and 7,176,013.20 is: 10,762,228.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,693,046.80 : 28,034,904.60 = 7,176,013.20 : x
  2. Step 2: Convert to fraction form
    18,693,046.80/28,034,904.60 = 7,176,013.20/x
  3. Step 3: Cross multiply
    18,693,046.80x = 28,034,904.60 × 7,176,013.20
  4. Step 4: Simplify right side
    18,693,046.80x = 201,178,845,470,340.75
  5. Step 5: Solve for x
    x = 201,178,845,470,340.75/18,693,046.80
  6. Step 6: Final answer
    x = 10,762,228.74

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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.