Home / 398,427,569.96-549,830,780.22-222,226,922.46

Finding the Fourth Proportional to 398,427,569.96, 549,830,780.22 and 222,226,922.46

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Solution

The fourth proportional to 398,427,569.96, 549,830,780.22 and 222,226,922.46 is: 306,673,562.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,427,569.96 : 549,830,780.22 = 222,226,922.46 : x
  2. Step 2: Convert to fraction form
    398,427,569.96/549,830,780.22 = 222,226,922.46/x
  3. Step 3: Cross multiply
    398,427,569.96x = 549,830,780.22 × 222,226,922.46
  4. Step 4: Simplify right side
    398,427,569.96x = 122,187,202,162,071,248
  5. Step 5: Solve for x
    x = 122,187,202,162,071,248/398,427,569.96
  6. Step 6: Final answer
    x = 306,673,562.21

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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.