Home / 18,779,614.65-28,132,745.63-12,942,766.80

Finding the Fourth Proportional to 18,779,614.65, 28,132,745.63 and 12,942,766.80

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Solution

The fourth proportional to 18,779,614.65, 28,132,745.63 and 12,942,766.80 is: 19,388,873.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,779,614.65 : 28,132,745.63 = 12,942,766.80 : x
  2. Step 2: Convert to fraction form
    18,779,614.65/28,132,745.63 = 12,942,766.80/x
  3. Step 3: Cross multiply
    18,779,614.65x = 28,132,745.63 × 12,942,766.80
  4. Step 4: Simplify right side
    18,779,614.65x = 364,115,566,068,095.25
  5. Step 5: Solve for x
    x = 364,115,566,068,095.25/18,779,614.65
  6. Step 6: Final answer
    x = 19,388,873.14

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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.