Home / 7,680,882.21-11,513,276.16-3,578,820.91

Finding the Fourth Proportional to 7,680,882.21, 11,513,276.16 and 3,578,820.91

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Solution

The fourth proportional to 7,680,882.21, 11,513,276.16 and 3,578,820.91 is: 5,364,481.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680,882.21 : 11,513,276.16 = 3,578,820.91 : x
  2. Step 2: Convert to fraction form
    7,680,882.21/11,513,276.16 = 3,578,820.91/x
  3. Step 3: Cross multiply
    7,680,882.21x = 11,513,276.16 × 3,578,820.91
  4. Step 4: Simplify right side
    7,680,882.21x = 41,203,953,464,012.51
  5. Step 5: Solve for x
    x = 41,203,953,464,012.51/7,680,882.21
  6. Step 6: Final answer
    x = 5,364,481.88

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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.