Home / 28,247,540.40-42,371,310.60-21,870,248.40

Finding the Fourth Proportional to 28,247,540.40, 42,371,310.60 and 21,870,248.40

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Solution

The fourth proportional to 28,247,540.40, 42,371,310.60 and 21,870,248.40 is: 32,805,372.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,247,540.40 : 42,371,310.60 = 21,870,248.40 : x
  2. Step 2: Convert to fraction form
    28,247,540.40/42,371,310.60 = 21,870,248.40/x
  3. Step 3: Cross multiply
    28,247,540.40x = 42,371,310.60 × 21,870,248.40
  4. Step 4: Simplify right side
    28,247,540.40x = 926,671,087,855,553
  5. Step 5: Solve for x
    x = 926,671,087,855,553/28,247,540.40
  6. Step 6: Final answer
    x = 32,805,372.60

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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.