Home / 7,145,707.65-10,712,536.05-3,099,147.72

Finding the Fourth Proportional to 7,145,707.65, 10,712,536.05 and 3,099,147.72

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Solution

The fourth proportional to 7,145,707.65, 10,712,536.05 and 3,099,147.72 is: 4,646,108.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145,707.65 : 10,712,536.05 = 3,099,147.72 : x
  2. Step 2: Convert to fraction form
    7,145,707.65/10,712,536.05 = 3,099,147.72/x
  3. Step 3: Cross multiply
    7,145,707.65x = 10,712,536.05 × 3,099,147.72
  4. Step 4: Simplify right side
    7,145,707.65x = 33,199,731,674,775.31
  5. Step 5: Solve for x
    x = 33,199,731,674,775.31/7,145,707.65
  6. Step 6: Final answer
    x = 4,646,108.31

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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.