Home / 61,236,218.70-91,854,328.05-54,061,765.20

Finding the Fourth Proportional to 61,236,218.70, 91,854,328.05 and 54,061,765.20

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Solution

The fourth proportional to 61,236,218.70, 91,854,328.05 and 54,061,765.20 is: 81,092,647.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,236,218.70 : 91,854,328.05 = 54,061,765.20 : x
  2. Step 2: Convert to fraction form
    61,236,218.70/91,854,328.05 = 54,061,765.20/x
  3. Step 3: Cross multiply
    61,236,218.70x = 91,854,328.05 × 54,061,765.20
  4. Step 4: Simplify right side
    61,236,218.70x = 4,965,807,115,642,874
  5. Step 5: Solve for x
    x = 4,965,807,115,642,874/61,236,218.70
  6. Step 6: Final answer
    x = 81,092,647.80

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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.