Home / 395,293,639.05-545,187,144.08-347,506,718.27

Finding the Fourth Proportional to 395,293,639.05, 545,187,144.08 and 347,506,718.27

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Solution

The fourth proportional to 395,293,639.05, 545,187,144.08 and 347,506,718.27 is: 479,279,645.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,293,639.05 : 545,187,144.08 = 347,506,718.27 : x
  2. Step 2: Convert to fraction form
    395,293,639.05/545,187,144.08 = 347,506,718.27/x
  3. Step 3: Cross multiply
    395,293,639.05x = 545,187,144.08 × 347,506,718.27
  4. Step 4: Simplify right side
    395,293,639.05x = 189,456,195,280,377,280
  5. Step 5: Solve for x
    x = 189,456,195,280,377,280/395,293,639.05
  6. Step 6: Final answer
    x = 479,279,645.72

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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.