Home / 21,915,178.86-30,243,839.14-12,125,464.50

Finding the Fourth Proportional to 21,915,178.86, 30,243,839.14 and 12,125,464.50

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Solution

The fourth proportional to 21,915,178.86, 30,243,839.14 and 12,125,464.50 is: 16,733,634.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,915,178.86 : 30,243,839.14 = 12,125,464.50 : x
  2. Step 2: Convert to fraction form
    21,915,178.86/30,243,839.14 = 12,125,464.50/x
  3. Step 3: Cross multiply
    21,915,178.86x = 30,243,839.14 × 12,125,464.50
  4. Step 4: Simplify right side
    21,915,178.86x = 366,720,597,684,561.31
  5. Step 5: Solve for x
    x = 366,720,597,684,561.31/21,915,178.86
  6. Step 6: Final answer
    x = 16,733,634.72

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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.