Home / 143,896,467.15-198,641,973.92-91,755,587.79

Finding the Fourth Proportional to 143,896,467.15, 198,641,973.92 and 91,755,587.79

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Solution

The fourth proportional to 143,896,467.15, 198,641,973.92 and 91,755,587.79 is: 126,664,062.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,896,467.15 : 198,641,973.92 = 91,755,587.79 : x
  2. Step 2: Convert to fraction form
    143,896,467.15/198,641,973.92 = 91,755,587.79/x
  3. Step 3: Cross multiply
    143,896,467.15x = 198,641,973.92 × 91,755,587.79
  4. Step 4: Simplify right side
    143,896,467.15x = 18,226,511,076,336,672
  5. Step 5: Solve for x
    x = 18,226,511,076,336,672/143,896,467.15
  6. Step 6: Final answer
    x = 126,664,062.28

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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.