Home / 199,331,805.90-298,997,708.85-172,068,882.60

Finding the Fourth Proportional to 199,331,805.90, 298,997,708.85 and 172,068,882.60

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Solution

The fourth proportional to 199,331,805.90, 298,997,708.85 and 172,068,882.60 is: 258,103,323.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,331,805.90 : 298,997,708.85 = 172,068,882.60 : x
  2. Step 2: Convert to fraction form
    199,331,805.90/298,997,708.85 = 172,068,882.60/x
  3. Step 3: Cross multiply
    199,331,805.90x = 298,997,708.85 × 172,068,882.60
  4. Step 4: Simplify right side
    199,331,805.90x = 51,448,201,661,779,632
  5. Step 5: Solve for x
    x = 51,448,201,661,779,632/199,331,805.90
  6. Step 6: Final answer
    x = 258,103,323.90

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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.