Home / 395,403,256.61-545,656,485.44-219,190,805.45

Finding the Fourth Proportional to 395,403,256.61, 545,656,485.44 and 219,190,805.45

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Solution

The fourth proportional to 395,403,256.61, 545,656,485.44 and 219,190,805.45 is: 302,483,306.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,403,256.61 : 545,656,485.44 = 219,190,805.45 : x
  2. Step 2: Convert to fraction form
    395,403,256.61/545,656,485.44 = 219,190,805.45/x
  3. Step 3: Cross multiply
    395,403,256.61x = 545,656,485.44 × 219,190,805.45
  4. Step 4: Simplify right side
    395,403,256.61x = 119,602,884,540,429,488
  5. Step 5: Solve for x
    x = 119,602,884,540,429,488/395,403,256.61
  6. Step 6: Final answer
    x = 302,483,306.71

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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.