Home / 18,787,062.65-28,171,710.50-7,277,920.47

Finding the Fourth Proportional to 18,787,062.65, 28,171,710.50 and 7,277,920.47

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Solution

The fourth proportional to 18,787,062.65, 28,171,710.50 and 7,277,920.47 is: 10,913,439.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,787,062.65 : 28,171,710.50 = 7,277,920.47 : x
  2. Step 2: Convert to fraction form
    18,787,062.65/28,171,710.50 = 7,277,920.47/x
  3. Step 3: Cross multiply
    18,787,062.65x = 28,171,710.50 × 7,277,920.47
  4. Step 4: Simplify right side
    18,787,062.65x = 205,031,468,486,474.34
  5. Step 5: Solve for x
    x = 205,031,468,486,474.34/18,787,062.65
  6. Step 6: Final answer
    x = 10,913,439.34

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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.