Home / 519,781,575.42-779,665,016.52-126,311,293.98

Finding the Fourth Proportional to 519,781,575.42, 779,665,016.52 and 126,311,293.98

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Solution

The fourth proportional to 519,781,575.42, 779,665,016.52 and 126,311,293.98 is: 189,465,155.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,781,575.42 : 779,665,016.52 = 126,311,293.98 : x
  2. Step 2: Convert to fraction form
    519,781,575.42/779,665,016.52 = 126,311,293.98/x
  3. Step 3: Cross multiply
    519,781,575.42x = 779,665,016.52 × 126,311,293.98
  4. Step 4: Simplify right side
    519,781,575.42x = 98,480,497,107,579,280
  5. Step 5: Solve for x
    x = 98,480,497,107,579,280/519,781,575.42
  6. Step 6: Final answer
    x = 189,465,155.68

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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.