Home / 395,541,657.06-545,820,879.40-219,323,128.76

Finding the Fourth Proportional to 395,541,657.06, 545,820,879.40 and 219,323,128.76

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Solution

The fourth proportional to 395,541,657.06, 545,820,879.40 and 219,323,128.76 is: 302,651,164.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,541,657.06 : 545,820,879.40 = 219,323,128.76 : x
  2. Step 2: Convert to fraction form
    395,541,657.06/545,820,879.40 = 219,323,128.76/x
  3. Step 3: Cross multiply
    395,541,657.06x = 545,820,879.40 × 219,323,128.76
  4. Step 4: Simplify right side
    395,541,657.06x = 119,711,143,012,542,624
  5. Step 5: Solve for x
    x = 119,711,143,012,542,624/395,541,657.06
  6. Step 6: Final answer
    x = 302,651,164.23

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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.