Home / 28,838,480.45-39,797,115.48-15,785,813.81

Finding the Fourth Proportional to 28,838,480.45, 39,797,115.48 and 15,785,813.81

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Solution

The fourth proportional to 28,838,480.45, 39,797,115.48 and 15,785,813.81 is: 21,784,429.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,838,480.45 : 39,797,115.48 = 15,785,813.81 : x
  2. Step 2: Convert to fraction form
    28,838,480.45/39,797,115.48 = 15,785,813.81/x
  3. Step 3: Cross multiply
    28,838,480.45x = 39,797,115.48 × 15,785,813.81
  4. Step 4: Simplify right side
    28,838,480.45x = 628,229,855,241,841.50
  5. Step 5: Solve for x
    x = 628,229,855,241,841.50/28,838,480.45
  6. Step 6: Final answer
    x = 21,784,429.88

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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.