Home / 205,063,648.20-307,346,640.30-118,636,000.20

Finding the Fourth Proportional to 205,063,648.20, 307,346,640.30 and 118,636,000.20

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Solution

The fourth proportional to 205,063,648.20, 307,346,640.30 and 118,636,000.20 is: 177,810,042.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,063,648.20 : 307,346,640.30 = 118,636,000.20 : x
  2. Step 2: Convert to fraction form
    205,063,648.20/307,346,640.30 = 118,636,000.20/x
  3. Step 3: Cross multiply
    205,063,648.20x = 307,346,640.30 × 118,636,000.20
  4. Step 4: Simplify right side
    205,063,648.20x = 36,462,376,080,100,128
  5. Step 5: Solve for x
    x = 36,462,376,080,100,128/205,063,648.20
  6. Step 6: Final answer
    x = 177,810,042.88

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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.