Home / 20,900,197.84-31,342,309.05-6,875,165.78

Finding the Fourth Proportional to 20,900,197.84, 31,342,309.05 and 6,875,165.78

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Solution

The fourth proportional to 20,900,197.84, 31,342,309.05 and 6,875,165.78 is: 10,310,121.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,900,197.84 : 31,342,309.05 = 6,875,165.78 : x
  2. Step 2: Convert to fraction form
    20,900,197.84/31,342,309.05 = 6,875,165.78/x
  3. Step 3: Cross multiply
    20,900,197.84x = 31,342,309.05 × 6,875,165.78
  4. Step 4: Simplify right side
    20,900,197.84x = 215,483,570,646,744.31
  5. Step 5: Solve for x
    x = 215,483,570,646,744.31/20,900,197.84
  6. Step 6: Final answer
    x = 10,310,121.10

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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.