Home / 30,205,421.70-45,308,132.55-8,930,285.70

Finding the Fourth Proportional to 30,205,421.70, 45,308,132.55 and 8,930,285.70

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Solution

The fourth proportional to 30,205,421.70, 45,308,132.55 and 8,930,285.70 is: 13,395,428.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,205,421.70 : 45,308,132.55 = 8,930,285.70 : x
  2. Step 2: Convert to fraction form
    30,205,421.70/45,308,132.55 = 8,930,285.70/x
  3. Step 3: Cross multiply
    30,205,421.70x = 45,308,132.55 × 8,930,285.70
  4. Step 4: Simplify right side
    30,205,421.70x = 404,614,568,204,969.50
  5. Step 5: Solve for x
    x = 404,614,568,204,969.50/30,205,421.70
  6. Step 6: Final answer
    x = 13,395,428.55

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Similar ratio
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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.