Home / 856,992,518.52-1,182,662,633.70-480,732,512.28

Finding the Fourth Proportional to 856,992,518.52, 1,182,662,633.70 and 480,732,512.28

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Solution

The fourth proportional to 856,992,518.52, 1,182,662,633.70 and 480,732,512.28 is: 663,418,135.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,992,518.52 : 1,182,662,633.70 = 480,732,512.28 : x
  2. Step 2: Convert to fraction form
    856,992,518.52/1,182,662,633.70 = 480,732,512.28/x
  3. Step 3: Cross multiply
    856,992,518.52x = 1,182,662,633.70 × 480,732,512.28
  4. Step 4: Simplify right side
    856,992,518.52x = 568,544,379,078,282,368
  5. Step 5: Solve for x
    x = 568,544,379,078,282,368/856,992,518.52
  6. Step 6: Final answer
    x = 663,418,135.86

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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.