Home / 5,217,297.70-7,816,615.35-3,220,420.90

Finding the Fourth Proportional to 5,217,297.70, 7,816,615.35 and 3,220,420.90

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Solution

The fourth proportional to 5,217,297.70, 7,816,615.35 and 3,220,420.90 is: 4,824,871.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217,297.70 : 7,816,615.35 = 3,220,420.90 : x
  2. Step 2: Convert to fraction form
    5,217,297.70/7,816,615.35 = 3,220,420.90/x
  3. Step 3: Cross multiply
    5,217,297.70x = 7,816,615.35 × 3,220,420.90
  4. Step 4: Simplify right side
    5,217,297.70x = 25,172,791,440,400.81
  5. Step 5: Solve for x
    x = 25,172,791,440,400.81/5,217,297.70
  6. Step 6: Final answer
    x = 4,824,871.59

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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.