Home / 205,055,999.40-307,583,999.10-191,519,538.60

Finding the Fourth Proportional to 205,055,999.40, 307,583,999.10 and 191,519,538.60

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Solution

The fourth proportional to 205,055,999.40, 307,583,999.10 and 191,519,538.60 is: 287,279,307.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,055,999.40 : 307,583,999.10 = 191,519,538.60 : x
  2. Step 2: Convert to fraction form
    205,055,999.40/307,583,999.10 = 191,519,538.60/x
  3. Step 3: Cross multiply
    205,055,999.40x = 307,583,999.10 × 191,519,538.60
  4. Step 4: Simplify right side
    205,055,999.40x = 58,908,345,588,374,816
  5. Step 5: Solve for x
    x = 58,908,345,588,374,816/205,055,999.40
  6. Step 6: Final answer
    x = 287,279,307.90

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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.