Home / 3,928,680.09-5,421,523.01-2,209,800.15

Finding the Fourth Proportional to 3,928,680.09, 5,421,523.01 and 2,209,800.15

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Solution

The fourth proportional to 3,928,680.09, 5,421,523.01 and 2,209,800.15 is: 3,049,492.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928,680.09 : 5,421,523.01 = 2,209,800.15 : x
  2. Step 2: Convert to fraction form
    3,928,680.09/5,421,523.01 = 2,209,800.15/x
  3. Step 3: Cross multiply
    3,928,680.09x = 5,421,523.01 × 2,209,800.15
  4. Step 4: Simplify right side
    3,928,680.09x = 11,980,482,349,677.45
  5. Step 5: Solve for x
    x = 11,980,482,349,677.45/3,928,680.09
  6. Step 6: Final answer
    x = 3,049,492.98

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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.