Home / 77,250,965,674.70-115,881,964,710.46-20,590,531,877.78

Finding the Fourth Proportional to 77,250,965,674.70, 115,881,964,710.46 and 20,590,531,877.78

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Solution

The fourth proportional to 77,250,965,674.70, 115,881,964,710.46 and 20,590,531,877.78 is: 30,887,268,108.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,250,965,674.70 : 115,881,964,710.46 = 20,590,531,877.78 : x
  2. Step 2: Convert to fraction form
    77,250,965,674.70/115,881,964,710.46 = 20,590,531,877.78/x
  3. Step 3: Cross multiply
    77,250,965,674.70x = 115,881,964,710.46 × 20,590,531,877.78
  4. Step 4: Simplify right side
    77,250,965,674.70x = 2,386,071,288,430,503,395,328
  5. Step 5: Solve for x
    x = 2,386,071,288,430,503,395,328/77,250,965,674.70
  6. Step 6: Final answer
    x = 30,887,268,108.44

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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.