Home / 55,762,578.80-83,648,015.40-19,856,121.20

Finding the Fourth Proportional to 55,762,578.80, 83,648,015.40 and 19,856,121.20

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Solution

The fourth proportional to 55,762,578.80, 83,648,015.40 and 19,856,121.20 is: 29,785,658.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,762,578.80 : 83,648,015.40 = 19,856,121.20 : x
  2. Step 2: Convert to fraction form
    55,762,578.80/83,648,015.40 = 19,856,121.20/x
  3. Step 3: Cross multiply
    55,762,578.80x = 83,648,015.40 × 19,856,121.20
  4. Step 4: Simplify right side
    55,762,578.80x = 1,660,925,131,921,866.50
  5. Step 5: Solve for x
    x = 1,660,925,131,921,866.50/55,762,578.80
  6. Step 6: Final answer
    x = 29,785,658.55

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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.