Home / 49,821,231.28-68,758,031.64-31,239,312.88

Finding the Fourth Proportional to 49,821,231.28, 68,758,031.64 and 31,239,312.88

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Solution

The fourth proportional to 49,821,231.28, 68,758,031.64 and 31,239,312.88 is: 43,113,219.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,821,231.28 : 68,758,031.64 = 31,239,312.88 : x
  2. Step 2: Convert to fraction form
    49,821,231.28/68,758,031.64 = 31,239,312.88/x
  3. Step 3: Cross multiply
    49,821,231.28x = 68,758,031.64 × 31,239,312.88
  4. Step 4: Simplify right side
    49,821,231.28x = 2,147,953,663,414,899.50
  5. Step 5: Solve for x
    x = 2,147,953,663,414,899.50/49,821,231.28
  6. Step 6: Final answer
    x = 43,113,219.17

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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.