Home / 108,362,032.40-162,808,469.40-81,488,176.40

Finding the Fourth Proportional to 108,362,032.40, 162,808,469.40 and 81,488,176.40

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Solution

The fourth proportional to 108,362,032.40, 162,808,469.40 and 81,488,176.40 is: 122,431,860.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,362,032.40 : 162,808,469.40 = 81,488,176.40 : x
  2. Step 2: Convert to fraction form
    108,362,032.40/162,808,469.40 = 81,488,176.40/x
  3. Step 3: Cross multiply
    108,362,032.40x = 162,808,469.40 × 81,488,176.40
  4. Step 4: Simplify right side
    108,362,032.40x = 13,266,965,273,881,204
  5. Step 5: Solve for x
    x = 13,266,965,273,881,204/108,362,032.40
  6. Step 6: Final answer
    x = 122,431,860.87

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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.