Home / 256,493,179.20-384,739,768.80-74,746,286.40

Finding the Fourth Proportional to 256,493,179.20, 384,739,768.80 and 74,746,286.40

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Solution

The fourth proportional to 256,493,179.20, 384,739,768.80 and 74,746,286.40 is: 112,119,429.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,493,179.20 : 384,739,768.80 = 74,746,286.40 : x
  2. Step 2: Convert to fraction form
    256,493,179.20/384,739,768.80 = 74,746,286.40/x
  3. Step 3: Cross multiply
    256,493,179.20x = 384,739,768.80 × 74,746,286.40
  4. Step 4: Simplify right side
    256,493,179.20x = 28,757,868,948,194,588
  5. Step 5: Solve for x
    x = 28,757,868,948,194,588/256,493,179.20
  6. Step 6: Final answer
    x = 112,119,429.60

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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.