Home / 155,945,354.97-215,196,064.04-85,367,311.77

Finding the Fourth Proportional to 155,945,354.97, 215,196,064.04 and 85,367,311.77

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Solution

The fourth proportional to 155,945,354.97, 215,196,064.04 and 85,367,311.77 is: 117,802,223.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,945,354.97 : 215,196,064.04 = 85,367,311.77 : x
  2. Step 2: Convert to fraction form
    155,945,354.97/215,196,064.04 = 85,367,311.77/x
  3. Step 3: Cross multiply
    155,945,354.97x = 215,196,064.04 × 85,367,311.77
  4. Step 4: Simplify right side
    155,945,354.97x = 18,370,709,489,076,748
  5. Step 5: Solve for x
    x = 18,370,709,489,076,748/155,945,354.97
  6. Step 6: Final answer
    x = 117,802,223.05

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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.