Home / 30,879,446.40-42,612,813.72-17,826,264

Finding the Fourth Proportional to 30,879,446.40, 42,612,813.72 and 17,826,264

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Solution

The fourth proportional to 30,879,446.40, 42,612,813.72 and 17,826,264 is: 24,599,769.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,879,446.40 : 42,612,813.72 = 17,826,264 : x
  2. Step 2: Convert to fraction form
    30,879,446.40/42,612,813.72 = 17,826,264/x
  3. Step 3: Cross multiply
    30,879,446.40x = 42,612,813.72 × 17,826,264
  4. Step 4: Simplify right side
    30,879,446.40x = 759,627,267,155,542
  5. Step 5: Solve for x
    x = 759,627,267,155,542/30,879,446.40
  6. Step 6: Final answer
    x = 24,599,769.61

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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.