Home / 21,581,292.48-29,802,071.94-13,859,786.46

Finding the Fourth Proportional to 21,581,292.48, 29,802,071.94 and 13,859,786.46

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Solution

The fourth proportional to 21,581,292.48, 29,802,071.94 and 13,859,786.46 is: 19,139,277.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,581,292.48 : 29,802,071.94 = 13,859,786.46 : x
  2. Step 2: Convert to fraction form
    21,581,292.48/29,802,071.94 = 13,859,786.46/x
  3. Step 3: Cross multiply
    21,581,292.48x = 29,802,071.94 × 13,859,786.46
  4. Step 4: Simplify right side
    21,581,292.48x = 413,050,353,153,958
  5. Step 5: Solve for x
    x = 413,050,353,153,958/21,581,292.48
  6. Step 6: Final answer
    x = 19,139,277.85

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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.