Home / 172,370,173.23-258,553,555.83-78,970,651.68

Finding the Fourth Proportional to 172,370,173.23, 258,553,555.83 and 78,970,651.68

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Solution

The fourth proportional to 172,370,173.23, 258,553,555.83 and 78,970,651.68 is: 118,455,196.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,370,173.23 : 258,553,555.83 = 78,970,651.68 : x
  2. Step 2: Convert to fraction form
    172,370,173.23/258,553,555.83 = 78,970,651.68/x
  3. Step 3: Cross multiply
    172,370,173.23x = 258,553,555.83 × 78,970,651.68
  4. Step 4: Simplify right side
    172,370,173.23x = 20,418,142,798,076,368
  5. Step 5: Solve for x
    x = 20,418,142,798,076,368/172,370,173.23
  6. Step 6: Final answer
    x = 118,455,196.83

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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.