Home / 20,383,652.48-28,118,721.02-12,117,835.06

Finding the Fourth Proportional to 20,383,652.48, 28,118,721.02 and 12,117,835.06

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Solution

The fourth proportional to 20,383,652.48, 28,118,721.02 and 12,117,835.06 is: 16,716,239.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,383,652.48 : 28,118,721.02 = 12,117,835.06 : x
  2. Step 2: Convert to fraction form
    20,383,652.48/28,118,721.02 = 12,117,835.06/x
  3. Step 3: Cross multiply
    20,383,652.48x = 28,118,721.02 × 12,117,835.06
  4. Step 4: Simplify right side
    20,383,652.48x = 340,738,023,418,515
  5. Step 5: Solve for x
    x = 340,738,023,418,515/20,383,652.48
  6. Step 6: Final answer
    x = 16,716,239.83

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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.