Home / 395,403,043.71-545,656,192.20-219,190,592.55

Finding the Fourth Proportional to 395,403,043.71, 545,656,192.20 and 219,190,592.55

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Solution

The fourth proportional to 395,403,043.71, 545,656,192.20 and 219,190,592.55 is: 302,483,013.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,403,043.71 : 545,656,192.20 = 219,190,592.55 : x
  2. Step 2: Convert to fraction form
    395,403,043.71/545,656,192.20 = 219,190,592.55/x
  3. Step 3: Cross multiply
    395,403,043.71x = 545,656,192.20 × 219,190,592.55
  4. Step 4: Simplify right side
    395,403,043.71x = 119,602,704,096,894,704
  5. Step 5: Solve for x
    x = 119,602,704,096,894,704/395,403,043.71
  6. Step 6: Final answer
    x = 302,483,013.22

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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.