Home / 115,101,002.90-172,651,504.35-100,320,382.10

Finding the Fourth Proportional to 115,101,002.90, 172,651,504.35 and 100,320,382.10

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Solution

The fourth proportional to 115,101,002.90, 172,651,504.35 and 100,320,382.10 is: 150,480,573.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,101,002.90 : 172,651,504.35 = 100,320,382.10 : x
  2. Step 2: Convert to fraction form
    115,101,002.90/172,651,504.35 = 100,320,382.10/x
  3. Step 3: Cross multiply
    115,101,002.90x = 172,651,504.35 × 100,320,382.10
  4. Step 4: Simplify right side
    115,101,002.90x = 17,320,464,886,531,810
  5. Step 5: Solve for x
    x = 17,320,464,886,531,810/115,101,002.90
  6. Step 6: Final answer
    x = 150,480,573.15

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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.