Home / 21,270,739.62-31,899,417.09-6,890,471.04

Finding the Fourth Proportional to 21,270,739.62, 31,899,417.09 and 6,890,471.04

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Solution

The fourth proportional to 21,270,739.62, 31,899,417.09 and 6,890,471.04 is: 10,333,538.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,270,739.62 : 31,899,417.09 = 6,890,471.04 : x
  2. Step 2: Convert to fraction form
    21,270,739.62/31,899,417.09 = 6,890,471.04/x
  3. Step 3: Cross multiply
    21,270,739.62x = 31,899,417.09 × 6,890,471.04
  4. Step 4: Simplify right side
    21,270,739.62x = 219,802,009,651,526.06
  5. Step 5: Solve for x
    x = 219,802,009,651,526.06/21,270,739.62
  6. Step 6: Final answer
    x = 10,333,538.63

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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.