Home / 21,649,338.40-29,875,848.88-11,725,974.20

Finding the Fourth Proportional to 21,649,338.40, 29,875,848.88 and 11,725,974.20

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Solution

The fourth proportional to 21,649,338.40, 29,875,848.88 and 11,725,974.20 is: 16,181,715.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,649,338.40 : 29,875,848.88 = 11,725,974.20 : x
  2. Step 2: Convert to fraction form
    21,649,338.40/29,875,848.88 = 11,725,974.20/x
  3. Step 3: Cross multiply
    21,649,338.40x = 29,875,848.88 × 11,725,974.20
  4. Step 4: Simplify right side
    21,649,338.40x = 350,323,433,169,978.88
  5. Step 5: Solve for x
    x = 350,323,433,169,978.88/21,649,338.40
  6. Step 6: Final answer
    x = 16,181,715.43

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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.