Home / 8,428,860.19-12,638,170.48-3,305,151.80

Finding the Fourth Proportional to 8,428,860.19, 12,638,170.48 and 3,305,151.80

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Solution

The fourth proportional to 8,428,860.19, 12,638,170.48 and 3,305,151.80 is: 4,955,720.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,428,860.19 : 12,638,170.48 = 3,305,151.80 : x
  2. Step 2: Convert to fraction form
    8,428,860.19/12,638,170.48 = 3,305,151.80/x
  3. Step 3: Cross multiply
    8,428,860.19x = 12,638,170.48 × 3,305,151.80
  4. Step 4: Simplify right side
    8,428,860.19x = 41,771,071,934,011.41
  5. Step 5: Solve for x
    x = 41,771,071,934,011.41/8,428,860.19
  6. Step 6: Final answer
    x = 4,955,720.11

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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.