Home / 30,555,279.12-45,804,443.88-20,975,169.36

Finding the Fourth Proportional to 30,555,279.12, 45,804,443.88 and 20,975,169.36

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Solution

The fourth proportional to 30,555,279.12, 45,804,443.88 and 20,975,169.36 is: 31,443,207.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,555,279.12 : 45,804,443.88 = 20,975,169.36 : x
  2. Step 2: Convert to fraction form
    30,555,279.12/45,804,443.88 = 20,975,169.36/x
  3. Step 3: Cross multiply
    30,555,279.12x = 45,804,443.88 × 20,975,169.36
  4. Step 4: Simplify right side
    30,555,279.12x = 960,755,967,823,615.50
  5. Step 5: Solve for x
    x = 960,755,967,823,615.50/30,555,279.12
  6. Step 6: Final answer
    x = 31,443,207.05

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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.