Home / 21,301,010.80-31,972,511.40-10,530,473.20

Finding the Fourth Proportional to 21,301,010.80, 31,972,511.40 and 10,530,473.20

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Solution

The fourth proportional to 21,301,010.80, 31,972,511.40 and 10,530,473.20 is: 15,806,089.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,301,010.80 : 31,972,511.40 = 10,530,473.20 : x
  2. Step 2: Convert to fraction form
    21,301,010.80/31,972,511.40 = 10,530,473.20/x
  3. Step 3: Cross multiply
    21,301,010.80x = 31,972,511.40 × 10,530,473.20
  4. Step 4: Simplify right side
    21,301,010.80x = 336,685,674,434,394.44
  5. Step 5: Solve for x
    x = 336,685,674,434,394.44/21,301,010.80
  6. Step 6: Final answer
    x = 15,806,089.09

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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.