Home / 172,043,999.40-258,065,999.10-57,046,290.60

Finding the Fourth Proportional to 172,043,999.40, 258,065,999.10 and 57,046,290.60

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Solution

The fourth proportional to 172,043,999.40, 258,065,999.10 and 57,046,290.60 is: 85,569,435.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,043,999.40 : 258,065,999.10 = 57,046,290.60 : x
  2. Step 2: Convert to fraction form
    172,043,999.40/258,065,999.10 = 57,046,290.60/x
  3. Step 3: Cross multiply
    172,043,999.40x = 258,065,999.10 × 57,046,290.60
  4. Step 4: Simplify right side
    172,043,999.40x = 14,721,707,978,637,938
  5. Step 5: Solve for x
    x = 14,721,707,978,637,938/172,043,999.40
  6. Step 6: Final answer
    x = 85,569,435.90

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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.