Home / 338,998,661.97-508,522,655.37-142,064,397.42

Finding the Fourth Proportional to 338,998,661.97, 508,522,655.37 and 142,064,397.42

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Solution

The fourth proportional to 338,998,661.97, 508,522,655.37 and 142,064,397.42 is: 213,106,931.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,998,661.97 : 508,522,655.37 = 142,064,397.42 : x
  2. Step 2: Convert to fraction form
    338,998,661.97/508,522,655.37 = 142,064,397.42/x
  3. Step 3: Cross multiply
    338,998,661.97x = 508,522,655.37 × 142,064,397.42
  4. Step 4: Simplify right side
    338,998,661.97x = 72,242,964,608,183,152
  5. Step 5: Solve for x
    x = 72,242,964,608,183,152/338,998,661.97
  6. Step 6: Final answer
    x = 213,106,931.42

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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.