Home / 20,451,918.48-30,654,568.44-12,779,106

Finding the Fourth Proportional to 20,451,918.48, 30,654,568.44 and 12,779,106

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Solution

The fourth proportional to 20,451,918.48, 30,654,568.44 and 12,779,106 is: 19,154,094.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,451,918.48 : 30,654,568.44 = 12,779,106 : x
  2. Step 2: Convert to fraction form
    20,451,918.48/30,654,568.44 = 12,779,106/x
  3. Step 3: Cross multiply
    20,451,918.48x = 30,654,568.44 × 12,779,106
  4. Step 4: Simplify right side
    20,451,918.48x = 391,737,979,479,014.69
  5. Step 5: Solve for x
    x = 391,737,979,479,014.69/20,451,918.48
  6. Step 6: Final answer
    x = 19,154,094.51

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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.