Home / 515,433,348.64-711,298,137.12-283,646,340.64

Finding the Fourth Proportional to 515,433,348.64, 711,298,137.12 and 283,646,340.64

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Solution

The fourth proportional to 515,433,348.64, 711,298,137.12 and 283,646,340.64 is: 391,432,013.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,433,348.64 : 711,298,137.12 = 283,646,340.64 : x
  2. Step 2: Convert to fraction form
    515,433,348.64/711,298,137.12 = 283,646,340.64/x
  3. Step 3: Cross multiply
    515,433,348.64x = 711,298,137.12 × 283,646,340.64
  4. Step 4: Simplify right side
    515,433,348.64x = 201,757,113,698,136,928
  5. Step 5: Solve for x
    x = 201,757,113,698,136,928/515,433,348.64
  6. Step 6: Final answer
    x = 391,432,013.92

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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.