Home / 395,541,656.06-545,820,878.03-219,323,127.76

Finding the Fourth Proportional to 395,541,656.06, 545,820,878.03 and 219,323,127.76

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Solution

The fourth proportional to 395,541,656.06, 545,820,878.03 and 219,323,127.76 is: 302,651,162.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,541,656.06 : 545,820,878.03 = 219,323,127.76 : x
  2. Step 2: Convert to fraction form
    395,541,656.06/545,820,878.03 = 219,323,127.76/x
  3. Step 3: Cross multiply
    395,541,656.06x = 545,820,878.03 × 219,323,127.76
  4. Step 4: Simplify right side
    395,541,656.06x = 119,711,142,163,787,888
  5. Step 5: Solve for x
    x = 119,711,142,163,787,888/395,541,656.06
  6. Step 6: Final answer
    x = 302,651,162.86

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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.