Home / 15,882,878.34-21,919,991.85-9,358,542.18

Finding the Fourth Proportional to 15,882,878.34, 21,919,991.85 and 9,358,542.18

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Solution

The fourth proportional to 15,882,878.34, 21,919,991.85 and 9,358,542.18 is: 12,915,742.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,882,878.34 : 21,919,991.85 = 9,358,542.18 : x
  2. Step 2: Convert to fraction form
    15,882,878.34/21,919,991.85 = 9,358,542.18/x
  3. Step 3: Cross multiply
    15,882,878.34x = 21,919,991.85 × 9,358,542.18
  4. Step 4: Simplify right side
    15,882,878.34x = 205,139,168,313,481.25
  5. Step 5: Solve for x
    x = 205,139,168,313,481.25/15,882,878.34
  6. Step 6: Final answer
    x = 12,915,742.60

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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.