Home / 108,918,021.80-163,377,032.70-100,603,922.60

Finding the Fourth Proportional to 108,918,021.80, 163,377,032.70 and 100,603,922.60

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Solution

The fourth proportional to 108,918,021.80, 163,377,032.70 and 100,603,922.60 is: 150,905,883.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,918,021.80 : 163,377,032.70 = 100,603,922.60 : x
  2. Step 2: Convert to fraction form
    108,918,021.80/163,377,032.70 = 100,603,922.60/x
  3. Step 3: Cross multiply
    108,918,021.80x = 163,377,032.70 × 100,603,922.60
  4. Step 4: Simplify right side
    108,918,021.80x = 16,436,370,352,368,466
  5. Step 5: Solve for x
    x = 16,436,370,352,368,466/108,918,021.80
  6. Step 6: Final answer
    x = 150,905,883.90

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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.