Home / 40,073,911.22-55,302,102.71-21,739,196.72

Finding the Fourth Proportional to 40,073,911.22, 55,302,102.71 and 21,739,196.72

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Solution

The fourth proportional to 40,073,911.22, 55,302,102.71 and 21,739,196.72 is: 30,000,148.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,073,911.22 : 55,302,102.71 = 21,739,196.72 : x
  2. Step 2: Convert to fraction form
    40,073,911.22/55,302,102.71 = 21,739,196.72/x
  3. Step 3: Cross multiply
    40,073,911.22x = 55,302,102.71 × 21,739,196.72
  4. Step 4: Simplify right side
    40,073,911.22x = 1,202,223,289,457,128.50
  5. Step 5: Solve for x
    x = 1,202,223,289,457,128.50/40,073,911.22
  6. Step 6: Final answer
    x = 30,000,148.55

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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.