Home / 11,109,646.10-16,631,992.20-7,921,000.10

Finding the Fourth Proportional to 11,109,646.10, 16,631,992.20 and 7,921,000.10

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Solution

The fourth proportional to 11,109,646.10, 16,631,992.20 and 7,921,000.10 is: 11,858,344.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,109,646.10 : 16,631,992.20 = 7,921,000.10 : x
  2. Step 2: Convert to fraction form
    11,109,646.10/16,631,992.20 = 7,921,000.10/x
  3. Step 3: Cross multiply
    11,109,646.10x = 16,631,992.20 × 7,921,000.10
  4. Step 4: Simplify right side
    11,109,646.10x = 131,742,011,879,399.20
  5. Step 5: Solve for x
    x = 131,742,011,879,399.20/11,109,646.10
  6. Step 6: Final answer
    x = 11,858,344.60

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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.