Home / 20,404,001.20-30,606,001.80-6,940,829.20

Finding the Fourth Proportional to 20,404,001.20, 30,606,001.80 and 6,940,829.20

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Solution

The fourth proportional to 20,404,001.20, 30,606,001.80 and 6,940,829.20 is: 10,411,243.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,404,001.20 : 30,606,001.80 = 6,940,829.20 : x
  2. Step 2: Convert to fraction form
    20,404,001.20/30,606,001.80 = 6,940,829.20/x
  3. Step 3: Cross multiply
    20,404,001.20x = 30,606,001.80 × 6,940,829.20
  4. Step 4: Simplify right side
    20,404,001.20x = 212,431,030,988,692.56
  5. Step 5: Solve for x
    x = 212,431,030,988,692.56/20,404,001.20
  6. Step 6: Final answer
    x = 10,411,243.80

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1.5x scale

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.