Home / 21,108,016,699.70-31,661,998,311.38-5,386,841,682.03

Finding the Fourth Proportional to 21,108,016,699.70, 31,661,998,311.38 and 5,386,841,682.03

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Solution

The fourth proportional to 21,108,016,699.70, 31,661,998,311.38 and 5,386,841,682.03 is: 8,080,255,699.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,108,016,699.70 : 31,661,998,311.38 = 5,386,841,682.03 : x
  2. Step 2: Convert to fraction form
    21,108,016,699.70/31,661,998,311.38 = 5,386,841,682.03/x
  3. Step 3: Cross multiply
    21,108,016,699.70x = 31,661,998,311.38 × 5,386,841,682.03
  4. Step 4: Simplify right side
    21,108,016,699.70x = 170,558,172,240,078,307,328
  5. Step 5: Solve for x
    x = 170,558,172,240,078,307,328/21,108,016,699.70
  6. Step 6: Final answer
    x = 8,080,255,699.37

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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.