Home / 99,857,296.80-149,785,945.20-61,394,090.40

Finding the Fourth Proportional to 99,857,296.80, 149,785,945.20 and 61,394,090.40

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Solution

The fourth proportional to 99,857,296.80, 149,785,945.20 and 61,394,090.40 is: 92,091,135.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,857,296.80 : 149,785,945.20 = 61,394,090.40 : x
  2. Step 2: Convert to fraction form
    99,857,296.80/149,785,945.20 = 61,394,090.40/x
  3. Step 3: Cross multiply
    99,857,296.80x = 149,785,945.20 × 61,394,090.40
  4. Step 4: Simplify right side
    99,857,296.80x = 9,195,971,860,258,246
  5. Step 5: Solve for x
    x = 9,195,971,860,258,246/99,857,296.80
  6. Step 6: Final answer
    x = 92,091,135.60

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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.