Home / 515,433,344.64-711,298,131.60-283,646,336.64

Finding the Fourth Proportional to 515,433,344.64, 711,298,131.60 and 283,646,336.64

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Solution

The fourth proportional to 515,433,344.64, 711,298,131.60 and 283,646,336.64 is: 391,432,008.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,433,344.64 : 711,298,131.60 = 283,646,336.64 : x
  2. Step 2: Convert to fraction form
    515,433,344.64/711,298,131.60 = 283,646,336.64/x
  3. Step 3: Cross multiply
    515,433,344.64x = 711,298,131.60 × 283,646,336.64
  4. Step 4: Simplify right side
    515,433,344.64x = 201,757,109,287,216,608
  5. Step 5: Solve for x
    x = 201,757,109,287,216,608/515,433,344.64
  6. Step 6: Final answer
    x = 391,432,008.40

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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.