Home / 217,620,371.40-326,430,557.10-168,302,646.60

Finding the Fourth Proportional to 217,620,371.40, 326,430,557.10 and 168,302,646.60

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Solution

The fourth proportional to 217,620,371.40, 326,430,557.10 and 168,302,646.60 is: 252,453,969.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,620,371.40 : 326,430,557.10 = 168,302,646.60 : x
  2. Step 2: Convert to fraction form
    217,620,371.40/326,430,557.10 = 168,302,646.60/x
  3. Step 3: Cross multiply
    217,620,371.40x = 326,430,557.10 × 168,302,646.60
  4. Step 4: Simplify right side
    217,620,371.40x = 54,939,126,691,042,424
  5. Step 5: Solve for x
    x = 54,939,126,691,042,424/217,620,371.40
  6. Step 6: Final answer
    x = 252,453,969.90

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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.