Home / 19,740,218.20-29,654,564.10-18,934,125.40

Finding the Fourth Proportional to 19,740,218.20, 29,654,564.10 and 18,934,125.40

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Solution

The fourth proportional to 19,740,218.20, 29,654,564.10 and 18,934,125.40 is: 28,443,618.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,740,218.20 : 29,654,564.10 = 18,934,125.40 : x
  2. Step 2: Convert to fraction form
    19,740,218.20/29,654,564.10 = 18,934,125.40/x
  3. Step 3: Cross multiply
    19,740,218.20x = 29,654,564.10 × 18,934,125.40
  4. Step 4: Simplify right side
    19,740,218.20x = 561,483,235,351,738.12
  5. Step 5: Solve for x
    x = 561,483,235,351,738.12/19,740,218.20
  6. Step 6: Final answer
    x = 28,443,618.49

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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.