Home / 256,642,052.40-384,679,643.40-141,709,078.80

Finding the Fourth Proportional to 256,642,052.40, 384,679,643.40 and 141,709,078.80

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Solution

The fourth proportional to 256,642,052.40, 384,679,643.40 and 141,709,078.80 is: 212,407,114.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,642,052.40 : 384,679,643.40 = 141,709,078.80 : x
  2. Step 2: Convert to fraction form
    256,642,052.40/384,679,643.40 = 141,709,078.80/x
  3. Step 3: Cross multiply
    256,642,052.40x = 384,679,643.40 × 141,709,078.80
  4. Step 4: Simplify right side
    256,642,052.40x = 54,512,597,899,326,504
  5. Step 5: Solve for x
    x = 54,512,597,899,326,504/256,642,052.40
  6. Step 6: Final answer
    x = 212,407,114.85

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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.