Home / 395,216,077.28-545,401,436-219,007,015.32

Finding the Fourth Proportional to 395,216,077.28, 545,401,436 and 219,007,015.32

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Solution

The fourth proportional to 395,216,077.28, 545,401,436 and 219,007,015.32 is: 302,231,481.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,216,077.28 : 545,401,436 = 219,007,015.32 : x
  2. Step 2: Convert to fraction form
    395,216,077.28/545,401,436 = 219,007,015.32/x
  3. Step 3: Cross multiply
    395,216,077.28x = 545,401,436 × 219,007,015.32
  4. Step 4: Simplify right side
    395,216,077.28x = 119,446,740,649,602,000
  5. Step 5: Solve for x
    x = 119,446,740,649,602,000/395,216,077.28
  6. Step 6: Final answer
    x = 302,231,481.75

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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.