Home / 57,855,231.72-86,780,043.36-21,470,715.36

Finding the Fourth Proportional to 57,855,231.72, 86,780,043.36 and 21,470,715.36

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Solution

The fourth proportional to 57,855,231.72, 86,780,043.36 and 21,470,715.36 is: 32,205,032.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,855,231.72 : 86,780,043.36 = 21,470,715.36 : x
  2. Step 2: Convert to fraction form
    57,855,231.72/86,780,043.36 = 21,470,715.36/x
  3. Step 3: Cross multiply
    57,855,231.72x = 86,780,043.36 × 21,470,715.36
  4. Step 4: Simplify right side
    57,855,231.72x = 1,863,229,609,911,018
  5. Step 5: Solve for x
    x = 1,863,229,609,911,018/57,855,231.72
  6. Step 6: Final answer
    x = 32,205,032.36

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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.