Home / 21,032,546.40-31,548,819.60-10,828,879.20

Finding the Fourth Proportional to 21,032,546.40, 31,548,819.60 and 10,828,879.20

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Solution

The fourth proportional to 21,032,546.40, 31,548,819.60 and 10,828,879.20 is: 16,243,318.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,032,546.40 : 31,548,819.60 = 10,828,879.20 : x
  2. Step 2: Convert to fraction form
    21,032,546.40/31,548,819.60 = 10,828,879.20/x
  3. Step 3: Cross multiply
    21,032,546.40x = 31,548,819.60 × 10,828,879.20
  4. Step 4: Simplify right side
    21,032,546.40x = 341,638,356,350,992.31
  5. Step 5: Solve for x
    x = 341,638,356,350,992.31/21,032,546.40
  6. Step 6: Final answer
    x = 16,243,318.80

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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.