Home / 217,317,779.40-325,976,669.10-148,443,025.80

Finding the Fourth Proportional to 217,317,779.40, 325,976,669.10 and 148,443,025.80

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Solution

The fourth proportional to 217,317,779.40, 325,976,669.10 and 148,443,025.80 is: 222,664,538.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,317,779.40 : 325,976,669.10 = 148,443,025.80 : x
  2. Step 2: Convert to fraction form
    217,317,779.40/325,976,669.10 = 148,443,025.80/x
  3. Step 3: Cross multiply
    217,317,779.40x = 325,976,669.10 × 148,443,025.80
  4. Step 4: Simplify right side
    217,317,779.40x = 48,388,963,101,409,368
  5. Step 5: Solve for x
    x = 48,388,963,101,409,368/217,317,779.40
  6. Step 6: Final answer
    x = 222,664,538.70

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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.