Home / 21,107,260.40-31,660,890.60-11,008,569.20

Finding the Fourth Proportional to 21,107,260.40, 31,660,890.60 and 11,008,569.20

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Solution

The fourth proportional to 21,107,260.40, 31,660,890.60 and 11,008,569.20 is: 16,512,853.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,107,260.40 : 31,660,890.60 = 11,008,569.20 : x
  2. Step 2: Convert to fraction form
    21,107,260.40/31,660,890.60 = 11,008,569.20/x
  3. Step 3: Cross multiply
    21,107,260.40x = 31,660,890.60 × 11,008,569.20
  4. Step 4: Simplify right side
    21,107,260.40x = 348,541,105,103,729.50
  5. Step 5: Solve for x
    x = 348,541,105,103,729.50/21,107,260.40
  6. Step 6: Final answer
    x = 16,512,853.80

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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.