Home / 86,305,579.62-129,509,445.09-31,756,472.10

Finding the Fourth Proportional to 86,305,579.62, 129,509,445.09 and 31,756,472.10

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Solution

The fourth proportional to 86,305,579.62, 129,509,445.09 and 31,756,472.10 is: 47,653,501.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,305,579.62 : 129,509,445.09 = 31,756,472.10 : x
  2. Step 2: Convert to fraction form
    86,305,579.62/129,509,445.09 = 31,756,472.10/x
  3. Step 3: Cross multiply
    86,305,579.62x = 129,509,445.09 × 31,756,472.10
  4. Step 4: Simplify right side
    86,305,579.62x = 4,112,763,079,687,067.50
  5. Step 5: Solve for x
    x = 4,112,763,079,687,067.50/86,305,579.62
  6. Step 6: Final answer
    x = 47,653,501.64

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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.