Home / 7,182,795.90-9,912,467.73-3,919,820.81

Finding the Fourth Proportional to 7,182,795.90, 9,912,467.73 and 3,919,820.81

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Solution

The fourth proportional to 7,182,795.90, 9,912,467.73 and 3,919,820.81 is: 5,409,466.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182,795.90 : 9,912,467.73 = 3,919,820.81 : x
  2. Step 2: Convert to fraction form
    7,182,795.90/9,912,467.73 = 3,919,820.81/x
  3. Step 3: Cross multiply
    7,182,795.90x = 9,912,467.73 × 3,919,820.81
  4. Step 4: Simplify right side
    7,182,795.90x = 38,855,097,274,011.21
  5. Step 5: Solve for x
    x = 38,855,097,274,011.21/7,182,795.90
  6. Step 6: Final answer
    x = 5,409,466.99

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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.