Home / 21,055,020.60-31,519,545.30-18,535,596.60

Finding the Fourth Proportional to 21,055,020.60, 31,519,545.30 and 18,535,596.60

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Solution

The fourth proportional to 21,055,020.60, 31,519,545.30 and 18,535,596.60 is: 27,747,946.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,055,020.60 : 31,519,545.30 = 18,535,596.60 : x
  2. Step 2: Convert to fraction form
    21,055,020.60/31,519,545.30 = 18,535,596.60/x
  3. Step 3: Cross multiply
    21,055,020.60x = 31,519,545.30 × 18,535,596.60
  4. Step 4: Simplify right side
    21,055,020.60x = 584,233,576,696,226
  5. Step 5: Solve for x
    x = 584,233,576,696,226/21,055,020.60
  6. Step 6: Final answer
    x = 27,747,946.10

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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.