Home / 141,777,302.40-212,665,953.60-81,143,164.80

Finding the Fourth Proportional to 141,777,302.40, 212,665,953.60 and 81,143,164.80

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Solution

The fourth proportional to 141,777,302.40, 212,665,953.60 and 81,143,164.80 is: 121,714,747.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,777,302.40 : 212,665,953.60 = 81,143,164.80 : x
  2. Step 2: Convert to fraction form
    141,777,302.40/212,665,953.60 = 81,143,164.80/x
  3. Step 3: Cross multiply
    141,777,302.40x = 212,665,953.60 × 81,143,164.80
  4. Step 4: Simplify right side
    141,777,302.40x = 17,256,388,520,313,952
  5. Step 5: Solve for x
    x = 17,256,388,520,313,952/141,777,302.40
  6. Step 6: Final answer
    x = 121,714,747.20

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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.