Home / 217,778,939.10-326,668,408.65-108,939,822.30

Finding the Fourth Proportional to 217,778,939.10, 326,668,408.65 and 108,939,822.30

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Solution

The fourth proportional to 217,778,939.10, 326,668,408.65 and 108,939,822.30 is: 163,409,733.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,778,939.10 : 326,668,408.65 = 108,939,822.30 : x
  2. Step 2: Convert to fraction form
    217,778,939.10/326,668,408.65 = 108,939,822.30/x
  3. Step 3: Cross multiply
    217,778,939.10x = 326,668,408.65 × 108,939,822.30
  4. Step 4: Simplify right side
    217,778,939.10x = 35,587,198,389,354,780
  5. Step 5: Solve for x
    x = 35,587,198,389,354,780/217,778,939.10
  6. Step 6: Final answer
    x = 163,409,733.45

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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.