Home / 353,816,145.60-531,039,146.40-208,067,467.20

Finding the Fourth Proportional to 353,816,145.60, 531,039,146.40 and 208,067,467.20

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Solution

The fourth proportional to 353,816,145.60, 531,039,146.40 and 208,067,467.20 is: 312,286,399.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,816,145.60 : 531,039,146.40 = 208,067,467.20 : x
  2. Step 2: Convert to fraction form
    353,816,145.60/531,039,146.40 = 208,067,467.20/x
  3. Step 3: Cross multiply
    353,816,145.60x = 531,039,146.40 × 208,067,467.20
  4. Step 4: Simplify right side
    353,816,145.60x = 110,491,970,175,497,984
  5. Step 5: Solve for x
    x = 110,491,970,175,497,984/353,816,145.60
  6. Step 6: Final answer
    x = 312,286,399.45

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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.