Home / 15,243,653,149.91-21,036,809,068.64-9,140,999,279.06

Finding the Fourth Proportional to 15,243,653,149.91, 21,036,809,068.64 and 9,140,999,279.06

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Solution

The fourth proportional to 15,243,653,149.91, 21,036,809,068.64 and 9,140,999,279.06 is: 12,614,919,444.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,243,653,149.91 : 21,036,809,068.64 = 9,140,999,279.06 : x
  2. Step 2: Convert to fraction form
    15,243,653,149.91/21,036,809,068.64 = 9,140,999,279.06/x
  3. Step 3: Cross multiply
    15,243,653,149.91x = 21,036,809,068.64 × 9,140,999,279.06
  4. Step 4: Simplify right side
    15,243,653,149.91x = 192,297,456,530,086,789,120
  5. Step 5: Solve for x
    x = 192,297,456,530,086,789,120/15,243,653,149.91
  6. Step 6: Final answer
    x = 12,614,919,444.76

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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.