Home / 212,666,693.82-319,056,749.64-76,353,258.30

Finding the Fourth Proportional to 212,666,693.82, 319,056,749.64 and 76,353,258.30

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Solution

The fourth proportional to 212,666,693.82, 319,056,749.64 and 76,353,258.30 is: 114,550,247.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,666,693.82 : 319,056,749.64 = 76,353,258.30 : x
  2. Step 2: Convert to fraction form
    212,666,693.82/319,056,749.64 = 76,353,258.30/x
  3. Step 3: Cross multiply
    212,666,693.82x = 319,056,749.64 × 76,353,258.30
  4. Step 4: Simplify right side
    212,666,693.82x = 24,361,022,417,621,348
  5. Step 5: Solve for x
    x = 24,361,022,417,621,348/212,666,693.82
  6. Step 6: Final answer
    x = 114,550,247.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.