Home / 455,521,842.18-628,620,748.42-246,678,345

Finding the Fourth Proportional to 455,521,842.18, 628,620,748.42 and 246,678,345

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Solution

The fourth proportional to 455,521,842.18, 628,620,748.42 and 246,678,345 is: 340,416,444.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,521,842.18 : 628,620,748.42 = 246,678,345 : x
  2. Step 2: Convert to fraction form
    455,521,842.18/628,620,748.42 = 246,678,345/x
  3. Step 3: Cross multiply
    455,521,842.18x = 628,620,748.42 × 246,678,345
  4. Step 4: Simplify right side
    455,521,842.18x = 155,067,125,852,906,944
  5. Step 5: Solve for x
    x = 155,067,125,852,906,944/455,521,842.18
  6. Step 6: Final answer
    x = 340,416,444.38

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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.