Home / 398,235,028.74-549,562,376.61-231,005,111.46

Finding the Fourth Proportional to 398,235,028.74, 549,562,376.61 and 231,005,111.46

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Solution

The fourth proportional to 398,235,028.74, 549,562,376.61 and 231,005,111.46 is: 318,785,915.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,235,028.74 : 549,562,376.61 = 231,005,111.46 : x
  2. Step 2: Convert to fraction form
    398,235,028.74/549,562,376.61 = 231,005,111.46/x
  3. Step 3: Cross multiply
    398,235,028.74x = 549,562,376.61 × 231,005,111.46
  4. Step 4: Simplify right side
    398,235,028.74x = 126,951,718,063,015,552
  5. Step 5: Solve for x
    x = 126,951,718,063,015,552/398,235,028.74
  6. Step 6: Final answer
    x = 318,785,915.10

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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.