Home / 255,405,142.23-352,459,082.87-137,930,461.12

Finding the Fourth Proportional to 255,405,142.23, 352,459,082.87 and 137,930,461.12

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Solution

The fourth proportional to 255,405,142.23, 352,459,082.87 and 137,930,461.12 is: 190,344,029.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,405,142.23 : 352,459,082.87 = 137,930,461.12 : x
  2. Step 2: Convert to fraction form
    255,405,142.23/352,459,082.87 = 137,930,461.12/x
  3. Step 3: Cross multiply
    255,405,142.23x = 352,459,082.87 × 137,930,461.12
  4. Step 4: Simplify right side
    255,405,142.23x = 48,614,843,826,191,392
  5. Step 5: Solve for x
    x = 48,614,843,826,191,392/255,405,142.23
  6. Step 6: Final answer
    x = 190,344,029.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.