Home / 130,734,067.80-196,101,101.70-86,896,090.20

Finding the Fourth Proportional to 130,734,067.80, 196,101,101.70 and 86,896,090.20

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Solution

The fourth proportional to 130,734,067.80, 196,101,101.70 and 86,896,090.20 is: 130,344,135.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,734,067.80 : 196,101,101.70 = 86,896,090.20 : x
  2. Step 2: Convert to fraction form
    130,734,067.80/196,101,101.70 = 86,896,090.20/x
  3. Step 3: Cross multiply
    130,734,067.80x = 196,101,101.70 × 86,896,090.20
  4. Step 4: Simplify right side
    130,734,067.80x = 17,040,419,021,642,572
  5. Step 5: Solve for x
    x = 17,040,419,021,642,572/130,734,067.80
  6. Step 6: Final answer
    x = 130,344,135.30

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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.