Home / 12,866,137.96-19,294,925.10-5,187,799.60

Finding the Fourth Proportional to 12,866,137.96, 19,294,925.10 and 5,187,799.60

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Solution

The fourth proportional to 12,866,137.96, 19,294,925.10 and 5,187,799.60 is: 7,779,972.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,866,137.96 : 19,294,925.10 = 5,187,799.60 : x
  2. Step 2: Convert to fraction form
    12,866,137.96/19,294,925.10 = 5,187,799.60/x
  3. Step 3: Cross multiply
    12,866,137.96x = 19,294,925.10 × 5,187,799.60
  4. Step 4: Simplify right side
    12,866,137.96x = 100,098,204,715,809.95
  5. Step 5: Solve for x
    x = 100,098,204,715,809.95/12,866,137.96
  6. Step 6: Final answer
    x = 7,779,972.90

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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.