Home / 395,387,946.28-545,639,804.31-225,864,634.96

Finding the Fourth Proportional to 395,387,946.28, 545,639,804.31 and 225,864,634.96

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Solution

The fourth proportional to 395,387,946.28, 545,639,804.31 and 225,864,634.96 is: 311,695,731.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,387,946.28 : 545,639,804.31 = 225,864,634.96 : x
  2. Step 2: Convert to fraction form
    395,387,946.28/545,639,804.31 = 225,864,634.96/x
  3. Step 3: Cross multiply
    395,387,946.28x = 545,639,804.31 × 225,864,634.96
  4. Step 4: Simplify right side
    395,387,946.28x = 123,240,735,220,123,984
  5. Step 5: Solve for x
    x = 123,240,735,220,123,984/395,387,946.28
  6. Step 6: Final answer
    x = 311,695,731.70

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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.