Home / 80,409,080.67-120,309,253.48-47,637,243.79

Finding the Fourth Proportional to 80,409,080.67, 120,309,253.48 and 47,637,243.79

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Solution

The fourth proportional to 80,409,080.67, 120,309,253.48 and 47,637,243.79 is: 71,275,547.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,409,080.67 : 120,309,253.48 = 47,637,243.79 : x
  2. Step 2: Convert to fraction form
    80,409,080.67/120,309,253.48 = 47,637,243.79/x
  3. Step 3: Cross multiply
    80,409,080.67x = 120,309,253.48 × 47,637,243.79
  4. Step 4: Simplify right side
    80,409,080.67x = 5,731,201,238,100,573
  5. Step 5: Solve for x
    x = 5,731,201,238,100,573/80,409,080.67
  6. Step 6: Final answer
    x = 71,275,547.37

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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.