Home / 217,778,815.40-326,668,223.10-168,461,090.60

Finding the Fourth Proportional to 217,778,815.40, 326,668,223.10 and 168,461,090.60

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Solution

The fourth proportional to 217,778,815.40, 326,668,223.10 and 168,461,090.60 is: 252,691,635.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,778,815.40 : 326,668,223.10 = 168,461,090.60 : x
  2. Step 2: Convert to fraction form
    217,778,815.40/326,668,223.10 = 168,461,090.60/x
  3. Step 3: Cross multiply
    217,778,815.40x = 326,668,223.10 × 168,461,090.60
  4. Step 4: Simplify right side
    217,778,815.40x = 55,030,885,127,790,112
  5. Step 5: Solve for x
    x = 55,030,885,127,790,112/217,778,815.40
  6. Step 6: Final answer
    x = 252,691,635.90

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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.