Home / 261,076,146.96-391,571,650.26-76,800,526.83

Finding the Fourth Proportional to 261,076,146.96, 391,571,650.26 and 76,800,526.83

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Solution

The fourth proportional to 261,076,146.96, 391,571,650.26 and 76,800,526.83 is: 115,188,267.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,076,146.96 : 391,571,650.26 = 76,800,526.83 : x
  2. Step 2: Convert to fraction form
    261,076,146.96/391,571,650.26 = 76,800,526.83/x
  3. Step 3: Cross multiply
    261,076,146.96x = 391,571,650.26 × 76,800,526.83
  4. Step 4: Simplify right side
    261,076,146.96x = 30,072,909,031,660,504
  5. Step 5: Solve for x
    x = 30,072,909,031,660,504/261,076,146.96
  6. Step 6: Final answer
    x = 115,188,267.41

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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.