Home / 15,338,981.76-21,168,237.76-8,463,906.68

Finding the Fourth Proportional to 15,338,981.76, 21,168,237.76 and 8,463,906.68

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Solution

The fourth proportional to 15,338,981.76, 21,168,237.76 and 8,463,906.68 is: 11,680,435.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338,981.76 : 21,168,237.76 = 8,463,906.68 : x
  2. Step 2: Convert to fraction form
    15,338,981.76/21,168,237.76 = 8,463,906.68/x
  3. Step 3: Cross multiply
    15,338,981.76x = 21,168,237.76 × 8,463,906.68
  4. Step 4: Simplify right side
    15,338,981.76x = 179,165,988,980,692.25
  5. Step 5: Solve for x
    x = 179,165,988,980,692.25/15,338,981.76
  6. Step 6: Final answer
    x = 11,680,435.62

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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.