Home / 8,540,011.64-12,840,744.84-7,874,237.84

Finding the Fourth Proportional to 8,540,011.64, 12,840,744.84 and 7,874,237.84

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Solution

The fourth proportional to 8,540,011.64, 12,840,744.84 and 7,874,237.84 is: 11,839,688.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,540,011.64 : 12,840,744.84 = 7,874,237.84 : x
  2. Step 2: Convert to fraction form
    8,540,011.64/12,840,744.84 = 7,874,237.84/x
  3. Step 3: Cross multiply
    8,540,011.64x = 12,840,744.84 × 7,874,237.84
  4. Step 4: Simplify right side
    8,540,011.64x = 101,111,078,912,912.75
  5. Step 5: Solve for x
    x = 101,111,078,912,912.75/8,540,011.64
  6. Step 6: Final answer
    x = 11,839,688.65

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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.