Home / 40,077,045.92-55,306,430.57-21,742,331.42

Finding the Fourth Proportional to 40,077,045.92, 55,306,430.57 and 21,742,331.42

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Solution

The fourth proportional to 40,077,045.92, 55,306,430.57 and 21,742,331.42 is: 30,004,475.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,077,045.92 : 55,306,430.57 = 21,742,331.42 : x
  2. Step 2: Convert to fraction form
    40,077,045.92/55,306,430.57 = 21,742,331.42/x
  3. Step 3: Cross multiply
    40,077,045.92x = 55,306,430.57 × 21,742,331.42
  4. Step 4: Simplify right side
    40,077,045.92x = 1,202,490,743,302,781.25
  5. Step 5: Solve for x
    x = 1,202,490,743,302,781.25/40,077,045.92
  6. Step 6: Final answer
    x = 30,004,475.52

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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.