Home / 72,164,161.86-108,240,594.70-20,346,671.46

Finding the Fourth Proportional to 72,164,161.86, 108,240,594.70 and 20,346,671.46

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Solution

The fourth proportional to 72,164,161.86, 108,240,594.70 and 20,346,671.46 is: 30,518,414.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,164,161.86 : 108,240,594.70 = 20,346,671.46 : x
  2. Step 2: Convert to fraction form
    72,164,161.86/108,240,594.70 = 20,346,671.46/x
  3. Step 3: Cross multiply
    72,164,161.86x = 108,240,594.70 × 20,346,671.46
  4. Step 4: Simplify right side
    72,164,161.86x = 2,202,335,818,995,917.50
  5. Step 5: Solve for x
    x = 2,202,335,818,995,917.50/72,164,161.86
  6. Step 6: Final answer
    x = 30,518,414.71

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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.