Home / 354,336,658.40-531,504,987.60-138,925,906.40

Finding the Fourth Proportional to 354,336,658.40, 531,504,987.60 and 138,925,906.40

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Solution

The fourth proportional to 354,336,658.40, 531,504,987.60 and 138,925,906.40 is: 208,388,859.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,336,658.40 : 531,504,987.60 = 138,925,906.40 : x
  2. Step 2: Convert to fraction form
    354,336,658.40/531,504,987.60 = 138,925,906.40/x
  3. Step 3: Cross multiply
    354,336,658.40x = 531,504,987.60 × 138,925,906.40
  4. Step 4: Simplify right side
    354,336,658.40x = 73,839,812,158,450,768
  5. Step 5: Solve for x
    x = 73,839,812,158,450,768/354,336,658.40
  6. Step 6: Final answer
    x = 208,388,859.60

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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.