Home / 28,037,258.69-38,690,548.85-15,813,939.65

Finding the Fourth Proportional to 28,037,258.69, 38,690,548.85 and 15,813,939.65

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Solution

The fourth proportional to 28,037,258.69, 38,690,548.85 and 15,813,939.65 is: 21,822,747.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,037,258.69 : 38,690,548.85 = 15,813,939.65 : x
  2. Step 2: Convert to fraction form
    28,037,258.69/38,690,548.85 = 15,813,939.65/x
  3. Step 3: Cross multiply
    28,037,258.69x = 38,690,548.85 × 15,813,939.65
  4. Step 4: Simplify right side
    28,037,258.69x = 611,850,004,460,207.25
  5. Step 5: Solve for x
    x = 611,850,004,460,207.25/28,037,258.69
  6. Step 6: Final answer
    x = 21,822,747.05

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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.