Home / 515,433,296.64-711,298,065.36-283,646,288.64

Finding the Fourth Proportional to 515,433,296.64, 711,298,065.36 and 283,646,288.64

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Solution

The fourth proportional to 515,433,296.64, 711,298,065.36 and 283,646,288.64 is: 391,431,942.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,433,296.64 : 711,298,065.36 = 283,646,288.64 : x
  2. Step 2: Convert to fraction form
    515,433,296.64/711,298,065.36 = 283,646,288.64/x
  3. Step 3: Cross multiply
    515,433,296.64x = 711,298,065.36 × 283,646,288.64
  4. Step 4: Simplify right side
    515,433,296.64x = 201,757,056,356,176,128
  5. Step 5: Solve for x
    x = 201,757,056,356,176,128/515,433,296.64
  6. Step 6: Final answer
    x = 391,431,942.16

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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.