Home / 20,494,331.28-30,698,979.48-11,948,749.20

Finding the Fourth Proportional to 20,494,331.28, 30,698,979.48 and 11,948,749.20

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Solution

The fourth proportional to 20,494,331.28, 30,698,979.48 and 11,948,749.20 is: 17,898,334.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,494,331.28 : 30,698,979.48 = 11,948,749.20 : x
  2. Step 2: Convert to fraction form
    20,494,331.28/30,698,979.48 = 11,948,749.20/x
  3. Step 3: Cross multiply
    20,494,331.28x = 30,698,979.48 × 11,948,749.20
  4. Step 4: Simplify right side
    20,494,331.28x = 366,814,406,502,466.38
  5. Step 5: Solve for x
    x = 366,814,406,502,466.38/20,494,331.28
  6. Step 6: Final answer
    x = 17,898,334.98

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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.