Home / 698,067,871.39-963,391,252.52-400,767,486.42

Finding the Fourth Proportional to 698,067,871.39, 963,391,252.52 and 400,767,486.42

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Solution

The fourth proportional to 698,067,871.39, 963,391,252.52 and 400,767,486.42 is: 553,092,194.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,067,871.39 : 963,391,252.52 = 400,767,486.42 : x
  2. Step 2: Convert to fraction form
    698,067,871.39/963,391,252.52 = 400,767,486.42/x
  3. Step 3: Cross multiply
    698,067,871.39x = 963,391,252.52 × 400,767,486.42
  4. Step 4: Simplify right side
    698,067,871.39x = 386,095,890,711,105,536
  5. Step 5: Solve for x
    x = 386,095,890,711,105,536/698,067,871.39
  6. Step 6: Final answer
    x = 553,092,194.23

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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.