Home / 12,318,541.47-16,999,697.43-6,812,286.84

Finding the Fourth Proportional to 12,318,541.47, 16,999,697.43 and 6,812,286.84

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Solution

The fourth proportional to 12,318,541.47, 16,999,697.43 and 6,812,286.84 is: 9,401,016.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,318,541.47 : 16,999,697.43 = 6,812,286.84 : x
  2. Step 2: Convert to fraction form
    12,318,541.47/16,999,697.43 = 6,812,286.84/x
  3. Step 3: Cross multiply
    12,318,541.47x = 16,999,697.43 × 6,812,286.84
  4. Step 4: Simplify right side
    12,318,541.47x = 115,806,815,086,370.81
  5. Step 5: Solve for x
    x = 115,806,815,086,370.81/12,318,541.47
  6. Step 6: Final answer
    x = 9,401,016.78

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1.5x scale

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.