Home / 108,518,820.40-162,778,230.60-100,204,721.20

Finding the Fourth Proportional to 108,518,820.40, 162,778,230.60 and 100,204,721.20

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Solution

The fourth proportional to 108,518,820.40, 162,778,230.60 and 100,204,721.20 is: 150,307,081.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,518,820.40 : 162,778,230.60 = 100,204,721.20 : x
  2. Step 2: Convert to fraction form
    108,518,820.40/162,778,230.60 = 100,204,721.20/x
  3. Step 3: Cross multiply
    108,518,820.40x = 162,778,230.60 × 100,204,721.20
  4. Step 4: Simplify right side
    108,518,820.40x = 16,311,147,214,702,308
  5. Step 5: Solve for x
    x = 16,311,147,214,702,308/108,518,820.40
  6. Step 6: Final answer
    x = 150,307,081.80

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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.