Home / 18,558,897.31-27,830,125.41-9,920,905.30

Finding the Fourth Proportional to 18,558,897.31, 27,830,125.41 and 9,920,905.30

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Solution

The fourth proportional to 18,558,897.31, 27,830,125.41 and 9,920,905.30 is: 14,876,963.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,558,897.31 : 27,830,125.41 = 9,920,905.30 : x
  2. Step 2: Convert to fraction form
    18,558,897.31/27,830,125.41 = 9,920,905.30/x
  3. Step 3: Cross multiply
    18,558,897.31x = 27,830,125.41 × 9,920,905.30
  4. Step 4: Simplify right side
    18,558,897.31x = 276,100,038,679,733.69
  5. Step 5: Solve for x
    x = 276,100,038,679,733.69/18,558,897.31
  6. Step 6: Final answer
    x = 14,876,963.54

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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.