Home / 21,031,141.60-31,546,712.40-7,563,109.60

Finding the Fourth Proportional to 21,031,141.60, 31,546,712.40 and 7,563,109.60

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Solution

The fourth proportional to 21,031,141.60, 31,546,712.40 and 7,563,109.60 is: 11,344,664.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,031,141.60 : 31,546,712.40 = 7,563,109.60 : x
  2. Step 2: Convert to fraction form
    21,031,141.60/31,546,712.40 = 7,563,109.60/x
  3. Step 3: Cross multiply
    21,031,141.60x = 31,546,712.40 × 7,563,109.60
  4. Step 4: Simplify right side
    21,031,141.60x = 238,591,243,400,879.03
  5. Step 5: Solve for x
    x = 238,591,243,400,879.03/21,031,141.60
  6. Step 6: Final answer
    x = 11,344,664.40

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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.