Home / 107,985,890.40-161,993,043.60-39,876,424.80

Finding the Fourth Proportional to 107,985,890.40, 161,993,043.60 and 39,876,424.80

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Solution

The fourth proportional to 107,985,890.40, 161,993,043.60 and 39,876,424.80 is: 59,819,883.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,985,890.40 : 161,993,043.60 = 39,876,424.80 : x
  2. Step 2: Convert to fraction form
    107,985,890.40/161,993,043.60 = 39,876,424.80/x
  3. Step 3: Cross multiply
    107,985,890.40x = 161,993,043.60 × 39,876,424.80
  4. Step 4: Simplify right side
    107,985,890.40x = 6,459,703,421,238,521
  5. Step 5: Solve for x
    x = 6,459,703,421,238,521/107,985,890.40
  6. Step 6: Final answer
    x = 59,819,883.85

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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.