Home / 515,433,347.64-711,298,135.74-283,646,339.64

Finding the Fourth Proportional to 515,433,347.64, 711,298,135.74 and 283,646,339.64

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Solution

The fourth proportional to 515,433,347.64, 711,298,135.74 and 283,646,339.64 is: 391,432,012.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,433,347.64 : 711,298,135.74 = 283,646,339.64 : x
  2. Step 2: Convert to fraction form
    515,433,347.64/711,298,135.74 = 283,646,339.64/x
  3. Step 3: Cross multiply
    515,433,347.64x = 711,298,135.74 × 283,646,339.64
  4. Step 4: Simplify right side
    515,433,347.64x = 201,757,112,595,406,848
  5. Step 5: Solve for x
    x = 201,757,112,595,406,848/515,433,347.64
  6. Step 6: Final answer
    x = 391,432,012.54

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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.