Home / 261,083,218.01-391,490,056.17-76,826,747.57

Finding the Fourth Proportional to 261,083,218.01, 391,490,056.17 and 76,826,747.57

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Solution

The fourth proportional to 261,083,218.01, 391,490,056.17 and 76,826,747.57 is: 115,200,463.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,083,218.01 : 391,490,056.17 = 76,826,747.57 : x
  2. Step 2: Convert to fraction form
    261,083,218.01/391,490,056.17 = 76,826,747.57/x
  3. Step 3: Cross multiply
    261,083,218.01x = 391,490,056.17 × 76,826,747.57
  4. Step 4: Simplify right side
    261,083,218.01x = 30,076,907,719,580,260
  5. Step 5: Solve for x
    x = 30,076,907,719,580,260/261,083,218.01
  6. Step 6: Final answer
    x = 115,200,463.47

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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.