Home / 13,766,890.31-18,998,324.40-7,655,187.59

Finding the Fourth Proportional to 13,766,890.31, 18,998,324.40 and 7,655,187.59

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Solution

The fourth proportional to 13,766,890.31, 18,998,324.40 and 7,655,187.59 is: 10,564,167.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,766,890.31 : 18,998,324.40 = 7,655,187.59 : x
  2. Step 2: Convert to fraction form
    13,766,890.31/18,998,324.40 = 7,655,187.59/x
  3. Step 3: Cross multiply
    13,766,890.31x = 18,998,324.40 × 7,655,187.59
  4. Step 4: Simplify right side
    13,766,890.31x = 145,435,737,044,406.62
  5. Step 5: Solve for x
    x = 145,435,737,044,406.62/13,766,890.31
  6. Step 6: Final answer
    x = 10,564,167.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.