Home / 155,368,382.13-214,393,102.50-85,749,279.03

Finding the Fourth Proportional to 155,368,382.13, 214,393,102.50 and 85,749,279.03

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Solution

The fourth proportional to 155,368,382.13, 214,393,102.50 and 85,749,279.03 is: 118,325,580.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,368,382.13 : 214,393,102.50 = 85,749,279.03 : x
  2. Step 2: Convert to fraction form
    155,368,382.13/214,393,102.50 = 85,749,279.03/x
  3. Step 3: Cross multiply
    155,368,382.13x = 214,393,102.50 × 85,749,279.03
  4. Step 4: Simplify right side
    155,368,382.13x = 18,384,053,968,379,892
  5. Step 5: Solve for x
    x = 18,384,053,968,379,892/155,368,382.13
  6. Step 6: Final answer
    x = 118,325,580.25

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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.