Home / 395,293,429.98-545,186,856.52-347,506,508.82

Finding the Fourth Proportional to 395,293,429.98, 545,186,856.52 and 347,506,508.82

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Solution

The fourth proportional to 395,293,429.98, 545,186,856.52 and 347,506,508.82 is: 479,279,357.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,293,429.98 : 545,186,856.52 = 347,506,508.82 : x
  2. Step 2: Convert to fraction form
    395,293,429.98/545,186,856.52 = 347,506,508.82/x
  3. Step 3: Cross multiply
    395,293,429.98x = 545,186,856.52 × 347,506,508.82
  4. Step 4: Simplify right side
    395,293,429.98x = 189,455,981,163,815,456
  5. Step 5: Solve for x
    x = 189,455,981,163,815,456/395,293,429.98
  6. Step 6: Final answer
    x = 479,279,357.55

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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.