Home / 20,118,542.70-30,177,814.05-7,339,464.30

Finding the Fourth Proportional to 20,118,542.70, 30,177,814.05 and 7,339,464.30

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Solution

The fourth proportional to 20,118,542.70, 30,177,814.05 and 7,339,464.30 is: 11,009,196.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,118,542.70 : 30,177,814.05 = 7,339,464.30 : x
  2. Step 2: Convert to fraction form
    20,118,542.70/30,177,814.05 = 7,339,464.30/x
  3. Step 3: Cross multiply
    20,118,542.70x = 30,177,814.05 × 7,339,464.30
  4. Step 4: Simplify right side
    20,118,542.70x = 221,488,988,872,013.41
  5. Step 5: Solve for x
    x = 221,488,988,872,013.41/20,118,542.70
  6. Step 6: Final answer
    x = 11,009,196.45

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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.