Home / 208,763,981,326.52-313,017,815,987.70-81,129,644,110.29

Finding the Fourth Proportional to 208,763,981,326.52, 313,017,815,987.70 and 81,129,644,110.29

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Solution

The fourth proportional to 208,763,981,326.52, 313,017,815,987.70 and 81,129,644,110.29 is: 121,644,662,311.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,763,981,326.52 : 313,017,815,987.70 = 81,129,644,110.29 : x
  2. Step 2: Convert to fraction form
    208,763,981,326.52/313,017,815,987.70 = 81,129,644,110.29/x
  3. Step 3: Cross multiply
    208,763,981,326.52x = 313,017,815,987.70 × 81,129,644,110.29
  4. Step 4: Simplify right side
    208,763,981,326.52x = 25,395,024,011,262,343,249,920
  5. Step 5: Solve for x
    x = 25,395,024,011,262,343,249,920/208,763,981,326.52
  6. Step 6: Final answer
    x = 121,644,662,311.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.