Home / 20,403,952.20-30,605,928.30-6,940,780.20

Finding the Fourth Proportional to 20,403,952.20, 30,605,928.30 and 6,940,780.20

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Solution

The fourth proportional to 20,403,952.20, 30,605,928.30 and 6,940,780.20 is: 10,411,170.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,403,952.20 : 30,605,928.30 = 6,940,780.20 : x
  2. Step 2: Convert to fraction form
    20,403,952.20/30,605,928.30 = 6,940,780.20/x
  3. Step 3: Cross multiply
    20,403,952.20x = 30,605,928.30 × 6,940,780.20
  4. Step 4: Simplify right side
    20,403,952.20x = 212,429,021,147,259.66
  5. Step 5: Solve for x
    x = 212,429,021,147,259.66/20,403,952.20
  6. Step 6: Final answer
    x = 10,411,170.30

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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.