Home / 82,020,625.20-122,865,600.60-51,220,666.80

Finding the Fourth Proportional to 82,020,625.20, 122,865,600.60 and 51,220,666.80

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Solution

The fourth proportional to 82,020,625.20, 122,865,600.60 and 51,220,666.80 is: 76,727,749.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,020,625.20 : 122,865,600.60 = 51,220,666.80 : x
  2. Step 2: Convert to fraction form
    82,020,625.20/122,865,600.60 = 51,220,666.80/x
  3. Step 3: Cross multiply
    82,020,625.20x = 122,865,600.60 × 51,220,666.80
  4. Step 4: Simplify right side
    82,020,625.20x = 6,293,257,989,514,479
  5. Step 5: Solve for x
    x = 6,293,257,989,514,479/82,020,625.20
  6. Step 6: Final answer
    x = 76,727,749.57

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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.