Home / 5,147,890.20-7,721,835.30-1,309,705.20

Finding the Fourth Proportional to 5,147,890.20, 7,721,835.30 and 1,309,705.20

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Solution

The fourth proportional to 5,147,890.20, 7,721,835.30 and 1,309,705.20 is: 1,964,557.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147,890.20 : 7,721,835.30 = 1,309,705.20 : x
  2. Step 2: Convert to fraction form
    5,147,890.20/7,721,835.30 = 1,309,705.20/x
  3. Step 3: Cross multiply
    5,147,890.20x = 7,721,835.30 × 1,309,705.20
  4. Step 4: Simplify right side
    5,147,890.20x = 10,113,327,845,953.56
  5. Step 5: Solve for x
    x = 10,113,327,845,953.56/5,147,890.20
  6. Step 6: Final answer
    x = 1,964,557.80

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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.