Home / 217,223,450.40-325,835,175.60-129,925,408.80

Finding the Fourth Proportional to 217,223,450.40, 325,835,175.60 and 129,925,408.80

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Solution

The fourth proportional to 217,223,450.40, 325,835,175.60 and 129,925,408.80 is: 194,888,113.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,223,450.40 : 325,835,175.60 = 129,925,408.80 : x
  2. Step 2: Convert to fraction form
    217,223,450.40/325,835,175.60 = 129,925,408.80/x
  3. Step 3: Cross multiply
    217,223,450.40x = 325,835,175.60 × 129,925,408.80
  4. Step 4: Simplify right side
    217,223,450.40x = 42,334,268,391,249,784
  5. Step 5: Solve for x
    x = 42,334,268,391,249,784/217,223,450.40
  6. Step 6: Final answer
    x = 194,888,113.20

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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.