Home / 385,295,844.48-531,708,629.04-220,286,869.44

Finding the Fourth Proportional to 385,295,844.48, 531,708,629.04 and 220,286,869.44

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Solution

The fourth proportional to 385,295,844.48, 531,708,629.04 and 220,286,869.44 is: 303,996,087.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,295,844.48 : 531,708,629.04 = 220,286,869.44 : x
  2. Step 2: Convert to fraction form
    385,295,844.48/531,708,629.04 = 220,286,869.44/x
  3. Step 3: Cross multiply
    385,295,844.48x = 531,708,629.04 × 220,286,869.44
  4. Step 4: Simplify right side
    385,295,844.48x = 117,128,429,345,455,872
  5. Step 5: Solve for x
    x = 117,128,429,345,455,872/385,295,844.48
  6. Step 6: Final answer
    x = 303,996,087.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.