Home / 190,647,031.05-286,080,876.39-79,972,789.36

Finding the Fourth Proportional to 190,647,031.05, 286,080,876.39 and 79,972,789.36

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Solution

The fourth proportional to 190,647,031.05, 286,080,876.39 and 79,972,789.36 is: 120,005,465.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,647,031.05 : 286,080,876.39 = 79,972,789.36 : x
  2. Step 2: Convert to fraction form
    190,647,031.05/286,080,876.39 = 79,972,789.36/x
  3. Step 3: Cross multiply
    190,647,031.05x = 286,080,876.39 × 79,972,789.36
  4. Step 4: Simplify right side
    190,647,031.05x = 22,878,685,666,746,464
  5. Step 5: Solve for x
    x = 22,878,685,666,746,464/190,647,031.05
  6. Step 6: Final answer
    x = 120,005,465.29

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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.