Home / 76,383,985.86-114,574,856.85-18,876,255.66

Finding the Fourth Proportional to 76,383,985.86, 114,574,856.85 and 18,876,255.66

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Solution

The fourth proportional to 76,383,985.86, 114,574,856.85 and 18,876,255.66 is: 28,314,106.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,383,985.86 : 114,574,856.85 = 18,876,255.66 : x
  2. Step 2: Convert to fraction form
    76,383,985.86/114,574,856.85 = 18,876,255.66/x
  3. Step 3: Cross multiply
    76,383,985.86x = 114,574,856.85 × 18,876,255.66
  4. Step 4: Simplify right side
    76,383,985.86x = 2,162,744,290,108,502.25
  5. Step 5: Solve for x
    x = 2,162,744,290,108,502.25/76,383,985.86
  6. Step 6: Final answer
    x = 28,314,106.23

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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.