Home / 141,318,681.40-211,978,022.10-131,115,014.20

Finding the Fourth Proportional to 141,318,681.40, 211,978,022.10 and 131,115,014.20

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Solution

The fourth proportional to 141,318,681.40, 211,978,022.10 and 131,115,014.20 is: 196,672,521.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,318,681.40 : 211,978,022.10 = 131,115,014.20 : x
  2. Step 2: Convert to fraction form
    141,318,681.40/211,978,022.10 = 131,115,014.20/x
  3. Step 3: Cross multiply
    141,318,681.40x = 211,978,022.10 × 131,115,014.20
  4. Step 4: Simplify right side
    141,318,681.40x = 27,793,501,377,729,412
  5. Step 5: Solve for x
    x = 27,793,501,377,729,412/141,318,681.40
  6. Step 6: Final answer
    x = 196,672,521.30

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Similar ratio
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1.5x scale

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.