Home / 100,031,982.48-138,049,953.48-55,978,601.04

Finding the Fourth Proportional to 100,031,982.48, 138,049,953.48 and 55,978,601.04

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Solution

The fourth proportional to 100,031,982.48, 138,049,953.48 and 55,978,601.04 is: 77,253,725.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,031,982.48 : 138,049,953.48 = 55,978,601.04 : x
  2. Step 2: Convert to fraction form
    100,031,982.48/138,049,953.48 = 55,978,601.04/x
  3. Step 3: Cross multiply
    100,031,982.48x = 138,049,953.48 × 55,978,601.04
  4. Step 4: Simplify right side
    100,031,982.48x = 7,727,843,269,447,479
  5. Step 5: Solve for x
    x = 7,727,843,269,447,479/100,031,982.48
  6. Step 6: Final answer
    x = 77,253,725.04

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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.