Home / 12,109,950.43-18,164,925.65-8,311,918.75

Finding the Fourth Proportional to 12,109,950.43, 18,164,925.65 and 8,311,918.75

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Solution

The fourth proportional to 12,109,950.43, 18,164,925.65 and 8,311,918.75 is: 12,467,878.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,109,950.43 : 18,164,925.65 = 8,311,918.75 : x
  2. Step 2: Convert to fraction form
    12,109,950.43/18,164,925.65 = 8,311,918.75/x
  3. Step 3: Cross multiply
    12,109,950.43x = 18,164,925.65 × 8,311,918.75
  4. Step 4: Simplify right side
    12,109,950.43x = 150,985,386,102,590.94
  5. Step 5: Solve for x
    x = 150,985,386,102,590.94/12,109,950.43
  6. Step 6: Final answer
    x = 12,467,878.13

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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.