Home / 256,519,799.11-353,987,839.03-139,042,607.08

Finding the Fourth Proportional to 256,519,799.11, 353,987,839.03 and 139,042,607.08

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Solution

The fourth proportional to 256,519,799.11, 353,987,839.03 and 139,042,607.08 is: 191,873,657.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,519,799.11 : 353,987,839.03 = 139,042,607.08 : x
  2. Step 2: Convert to fraction form
    256,519,799.11/353,987,839.03 = 139,042,607.08/x
  3. Step 3: Cross multiply
    256,519,799.11x = 353,987,839.03 × 139,042,607.08
  4. Step 4: Simplify right side
    256,519,799.11x = 49,219,392,013,346,576
  5. Step 5: Solve for x
    x = 49,219,392,013,346,576/256,519,799.11
  6. Step 6: Final answer
    x = 191,873,657.25

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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.