Home / 256,121,905.87-384,125,359.65-117,814,680.85

Finding the Fourth Proportional to 256,121,905.87, 384,125,359.65 and 117,814,680.85

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Solution

The fourth proportional to 256,121,905.87, 384,125,359.65 and 117,814,680.85 is: 176,695,571.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,121,905.87 : 384,125,359.65 = 117,814,680.85 : x
  2. Step 2: Convert to fraction form
    256,121,905.87/384,125,359.65 = 117,814,680.85/x
  3. Step 3: Cross multiply
    256,121,905.87x = 384,125,359.65 × 117,814,680.85
  4. Step 4: Simplify right side
    256,121,905.87x = 45,255,606,653,556,216
  5. Step 5: Solve for x
    x = 45,255,606,653,556,216/256,121,905.87
  6. Step 6: Final answer
    x = 176,695,571.98

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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.