Home / 395,293,642.43-545,187,148.74-347,506,721.64

Finding the Fourth Proportional to 395,293,642.43, 545,187,148.74 and 347,506,721.64

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Solution

The fourth proportional to 395,293,642.43, 545,187,148.74 and 347,506,721.64 is: 479,279,650.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,293,642.43 : 545,187,148.74 = 347,506,721.64 : x
  2. Step 2: Convert to fraction form
    395,293,642.43/545,187,148.74 = 347,506,721.64/x
  3. Step 3: Cross multiply
    395,293,642.43x = 545,187,148.74 × 347,506,721.64
  4. Step 4: Simplify right side
    395,293,642.43x = 189,456,198,738,896,448
  5. Step 5: Solve for x
    x = 189,456,198,738,896,448/395,293,642.43
  6. Step 6: Final answer
    x = 479,279,650.38

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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.