Home / 256,043,029.32-384,032,148.14-81,167,748.92

Finding the Fourth Proportional to 256,043,029.32, 384,032,148.14 and 81,167,748.92

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Solution

The fourth proportional to 256,043,029.32, 384,032,148.14 and 81,167,748.92 is: 121,741,353.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,043,029.32 : 384,032,148.14 = 81,167,748.92 : x
  2. Step 2: Convert to fraction form
    256,043,029.32/384,032,148.14 = 81,167,748.92/x
  3. Step 3: Cross multiply
    256,043,029.32x = 384,032,148.14 × 81,167,748.92
  4. Step 4: Simplify right side
    256,043,029.32x = 31,171,024,975,718,524
  5. Step 5: Solve for x
    x = 31,171,024,975,718,524/256,043,029.32
  6. Step 6: Final answer
    x = 121,741,353.63

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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.