Home / 466,230,975.72-643,381,893.18-257,382,642.84

Finding the Fourth Proportional to 466,230,975.72, 643,381,893.18 and 257,382,642.84

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Solution

The fourth proportional to 466,230,975.72, 643,381,893.18 and 257,382,642.84 is: 355,178,743.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,230,975.72 : 643,381,893.18 = 257,382,642.84 : x
  2. Step 2: Convert to fraction form
    466,230,975.72/643,381,893.18 = 257,382,642.84/x
  3. Step 3: Cross multiply
    466,230,975.72x = 643,381,893.18 × 257,382,642.84
  4. Step 4: Simplify right side
    466,230,975.72x = 165,595,332,022,070,976
  5. Step 5: Solve for x
    x = 165,595,332,022,070,976/466,230,975.72
  6. Step 6: Final answer
    x = 355,178,743.25

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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.