Home / 5,390,721.72-7,436,510.37-3,213,730.89

Finding the Fourth Proportional to 5,390,721.72, 7,436,510.37 and 3,213,730.89

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Solution

The fourth proportional to 5,390,721.72, 7,436,510.37 and 3,213,730.89 is: 4,433,347.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390,721.72 : 7,436,510.37 = 3,213,730.89 : x
  2. Step 2: Convert to fraction form
    5,390,721.72/7,436,510.37 = 3,213,730.89/x
  3. Step 3: Cross multiply
    5,390,721.72x = 7,436,510.37 × 3,213,730.89
  4. Step 4: Simplify right side
    5,390,721.72x = 23,898,943,089,874.33
  5. Step 5: Solve for x
    x = 23,898,943,089,874.33/5,390,721.72
  6. Step 6: Final answer
    x = 4,433,347.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.