Home / 12,808,711.61-19,213,043.73-4,172,801.74

Finding the Fourth Proportional to 12,808,711.61, 19,213,043.73 and 4,172,801.74

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Solution

The fourth proportional to 12,808,711.61, 19,213,043.73 and 4,172,801.74 is: 6,259,194.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,808,711.61 : 19,213,043.73 = 4,172,801.74 : x
  2. Step 2: Convert to fraction form
    12,808,711.61/19,213,043.73 = 4,172,801.74/x
  3. Step 3: Cross multiply
    12,808,711.61x = 19,213,043.73 × 4,172,801.74
  4. Step 4: Simplify right side
    12,808,711.61x = 80,172,222,315,608.39
  5. Step 5: Solve for x
    x = 80,172,222,315,608.39/12,808,711.61
  6. Step 6: Final answer
    x = 6,259,194.89

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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.