Home / 398,235,029.74-549,562,377.99-231,005,112.46

Finding the Fourth Proportional to 398,235,029.74, 549,562,377.99 and 231,005,112.46

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Solution

The fourth proportional to 398,235,029.74, 549,562,377.99 and 231,005,112.46 is: 318,785,916.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,235,029.74 : 549,562,377.99 = 231,005,112.46 : x
  2. Step 2: Convert to fraction form
    398,235,029.74/549,562,377.99 = 231,005,112.46/x
  3. Step 3: Cross multiply
    398,235,029.74x = 549,562,377.99 × 231,005,112.46
  4. Step 4: Simplify right side
    398,235,029.74x = 126,951,718,931,364,992
  5. Step 5: Solve for x
    x = 126,951,718,931,364,992/398,235,029.74
  6. Step 6: Final answer
    x = 318,785,916.48

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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.