Home / 30,987,421.01-46,486,805.57-12,781,684.43

Finding the Fourth Proportional to 30,987,421.01, 46,486,805.57 and 12,781,684.43

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Solution

The fourth proportional to 30,987,421.01, 46,486,805.57 and 12,781,684.43 is: 19,174,867.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,987,421.01 : 46,486,805.57 = 12,781,684.43 : x
  2. Step 2: Convert to fraction form
    30,987,421.01/46,486,805.57 = 12,781,684.43/x
  3. Step 3: Cross multiply
    30,987,421.01x = 46,486,805.57 × 12,781,684.43
  4. Step 4: Simplify right side
    30,987,421.01x = 594,179,678,658,163.88
  5. Step 5: Solve for x
    x = 594,179,678,658,163.88/30,987,421.01
  6. Step 6: Final answer
    x = 19,174,867.07

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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.