Home / 261,076,148.46-391,571,652.51-76,800,528.33

Finding the Fourth Proportional to 261,076,148.46, 391,571,652.51 and 76,800,528.33

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Solution

The fourth proportional to 261,076,148.46, 391,571,652.51 and 76,800,528.33 is: 115,188,269.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,076,148.46 : 391,571,652.51 = 76,800,528.33 : x
  2. Step 2: Convert to fraction form
    261,076,148.46/391,571,652.51 = 76,800,528.33/x
  3. Step 3: Cross multiply
    261,076,148.46x = 391,571,652.51 × 76,800,528.33
  4. Step 4: Simplify right side
    261,076,148.46x = 30,072,909,791,819,168
  5. Step 5: Solve for x
    x = 30,072,909,791,819,168/261,076,148.46
  6. Step 6: Final answer
    x = 115,188,269.66

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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.