Home / 262,268,938.67-393,398,006.72-87,404,669.12

Finding the Fourth Proportional to 262,268,938.67, 393,398,006.72 and 87,404,669.12

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Solution

The fourth proportional to 262,268,938.67, 393,398,006.72 and 87,404,669.12 is: 131,105,203.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,268,938.67 : 393,398,006.72 = 87,404,669.12 : x
  2. Step 2: Convert to fraction form
    262,268,938.67/393,398,006.72 = 87,404,669.12/x
  3. Step 3: Cross multiply
    262,268,938.67x = 393,398,006.72 × 87,404,669.12
  4. Step 4: Simplify right side
    262,268,938.67x = 34,384,822,610,375,608
  5. Step 5: Solve for x
    x = 34,384,822,610,375,608/262,268,938.67
  6. Step 6: Final answer
    x = 131,105,203.63

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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.