Home / 438,055,217.40-657,082,826.10-114,971,748.60

Finding the Fourth Proportional to 438,055,217.40, 657,082,826.10 and 114,971,748.60

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Solution

The fourth proportional to 438,055,217.40, 657,082,826.10 and 114,971,748.60 is: 172,457,622.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,055,217.40 : 657,082,826.10 = 114,971,748.60 : x
  2. Step 2: Convert to fraction form
    438,055,217.40/657,082,826.10 = 114,971,748.60/x
  3. Step 3: Cross multiply
    438,055,217.40x = 657,082,826.10 × 114,971,748.60
  4. Step 4: Simplify right side
    438,055,217.40x = 75,545,961,491,746,720
  5. Step 5: Solve for x
    x = 75,545,961,491,746,720/438,055,217.40
  6. Step 6: Final answer
    x = 172,457,622.90

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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.