Home / 99,720,377.16-149,565,570.96-31,554,198.60

Finding the Fourth Proportional to 99,720,377.16, 149,565,570.96 and 31,554,198.60

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Solution

The fourth proportional to 99,720,377.16, 149,565,570.96 and 31,554,198.60 is: 47,326,553.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,720,377.16 : 149,565,570.96 = 31,554,198.60 : x
  2. Step 2: Convert to fraction form
    99,720,377.16/149,565,570.96 = 31,554,198.60/x
  3. Step 3: Cross multiply
    99,720,377.16x = 149,565,570.96 × 31,554,198.60
  4. Step 4: Simplify right side
    99,720,377.16x = 4,719,421,729,794,233
  5. Step 5: Solve for x
    x = 4,719,421,729,794,233/99,720,377.16
  6. Step 6: Final answer
    x = 47,326,553.15

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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.