Home / 40,077,039.05-55,306,421.09-21,742,324.55

Finding the Fourth Proportional to 40,077,039.05, 55,306,421.09 and 21,742,324.55

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Solution

The fourth proportional to 40,077,039.05, 55,306,421.09 and 21,742,324.55 is: 30,004,466.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,077,039.05 : 55,306,421.09 = 21,742,324.55 : x
  2. Step 2: Convert to fraction form
    40,077,039.05/55,306,421.09 = 21,742,324.55/x
  3. Step 3: Cross multiply
    40,077,039.05x = 55,306,421.09 × 21,742,324.55
  4. Step 4: Simplify right side
    40,077,039.05x = 1,202,490,157,037,745
  5. Step 5: Solve for x
    x = 1,202,490,157,037,745/40,077,039.05
  6. Step 6: Final answer
    x = 30,004,466.04

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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.