Home / 40,077,057.57-55,306,446.63-21,742,343.07

Finding the Fourth Proportional to 40,077,057.57, 55,306,446.63 and 21,742,343.07

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Solution

The fourth proportional to 40,077,057.57, 55,306,446.63 and 21,742,343.07 is: 30,004,491.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,077,057.57 : 55,306,446.63 = 21,742,343.07 : x
  2. Step 2: Convert to fraction form
    40,077,057.57/55,306,446.63 = 21,742,343.07/x
  3. Step 3: Cross multiply
    40,077,057.57x = 55,306,446.63 × 21,742,343.07
  4. Step 4: Simplify right side
    40,077,057.57x = 1,202,491,736,612,105.50
  5. Step 5: Solve for x
    x = 1,202,491,736,612,105.50/40,077,057.57
  6. Step 6: Final answer
    x = 30,004,491.59

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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.