Home / 80,810,143.80-121,215,215.70-56,576,434.20

Finding the Fourth Proportional to 80,810,143.80, 121,215,215.70 and 56,576,434.20

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Solution

The fourth proportional to 80,810,143.80, 121,215,215.70 and 56,576,434.20 is: 84,864,651.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,810,143.80 : 121,215,215.70 = 56,576,434.20 : x
  2. Step 2: Convert to fraction form
    80,810,143.80/121,215,215.70 = 56,576,434.20/x
  3. Step 3: Cross multiply
    80,810,143.80x = 121,215,215.70 × 56,576,434.20
  4. Step 4: Simplify right side
    80,810,143.80x = 6,857,924,675,089,857
  5. Step 5: Solve for x
    x = 6,857,924,675,089,857/80,810,143.80
  6. Step 6: Final answer
    x = 84,864,651.30

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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.