Home / 72,298,076.86-108,371,432.68-30,256,858.27

Finding the Fourth Proportional to 72,298,076.86, 108,371,432.68 and 30,256,858.27

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Solution

The fourth proportional to 72,298,076.86, 108,371,432.68 and 30,256,858.27 is: 45,353,614.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,298,076.86 : 108,371,432.68 = 30,256,858.27 : x
  2. Step 2: Convert to fraction form
    72,298,076.86/108,371,432.68 = 30,256,858.27/x
  3. Step 3: Cross multiply
    72,298,076.86x = 108,371,432.68 × 30,256,858.27
  4. Step 4: Simplify right side
    72,298,076.86x = 3,278,979,078,769,035
  5. Step 5: Solve for x
    x = 3,278,979,078,769,035/72,298,076.86
  6. Step 6: Final answer
    x = 45,353,614.11

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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.