Home / 72,164,108.88-108,240,515.37-20,346,618.45

Finding the Fourth Proportional to 72,164,108.88, 108,240,515.37 and 20,346,618.45

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Solution

The fourth proportional to 72,164,108.88, 108,240,515.37 and 20,346,618.45 is: 30,518,335.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,164,108.88 : 108,240,515.37 = 20,346,618.45 : x
  2. Step 2: Convert to fraction form
    72,164,108.88/108,240,515.37 = 20,346,618.45/x
  3. Step 3: Cross multiply
    72,164,108.88x = 108,240,515.37 × 20,346,618.45
  4. Step 4: Simplify right side
    72,164,108.88x = 2,202,328,467,064,750.50
  5. Step 5: Solve for x
    x = 2,202,328,467,064,750.50/72,164,108.88
  6. Step 6: Final answer
    x = 30,518,335.24

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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.