Home / 557,576,015.28-769,455,293.97-306,699,492.86

Finding the Fourth Proportional to 557,576,015.28, 769,455,293.97 and 306,699,492.86

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Solution

The fourth proportional to 557,576,015.28, 769,455,293.97 and 306,699,492.86 is: 423,245,516.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,576,015.28 : 769,455,293.97 = 306,699,492.86 : x
  2. Step 2: Convert to fraction form
    557,576,015.28/769,455,293.97 = 306,699,492.86/x
  3. Step 3: Cross multiply
    557,576,015.28x = 769,455,293.97 × 306,699,492.86
  4. Step 4: Simplify right side
    557,576,015.28x = 235,991,548,435,193,952
  5. Step 5: Solve for x
    x = 235,991,548,435,193,952/557,576,015.28
  6. Step 6: Final answer
    x = 423,245,516.25

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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.