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Finding the Fourth Proportional to 17,991,948, 26,987,947.92 and 7,354,380

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Solution

The fourth proportional to 17,991,948, 26,987,947.92 and 7,354,380 is: 11,031,580.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,991,948 : 26,987,947.92 = 7,354,380 : x
  2. Step 2: Convert to fraction form
    17,991,948/26,987,947.92 = 7,354,380/x
  3. Step 3: Cross multiply
    17,991,948x = 26,987,947.92 × 7,354,380
  4. Step 4: Simplify right side
    17,991,948x = 198,479,624,423,889.62
  5. Step 5: Solve for x
    x = 198,479,624,423,889.62/17,991,948
  6. Step 6: Final answer
    x = 11,031,580.60

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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.