Home / 386,691,614.64-533,645,769.24-210,491,102.88

Finding the Fourth Proportional to 386,691,614.64, 533,645,769.24 and 210,491,102.88

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Solution

The fourth proportional to 386,691,614.64, 533,645,769.24 and 210,491,102.88 is: 290,483,895.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,691,614.64 : 533,645,769.24 = 210,491,102.88 : x
  2. Step 2: Convert to fraction form
    386,691,614.64/533,645,769.24 = 210,491,102.88/x
  3. Step 3: Cross multiply
    386,691,614.64x = 533,645,769.24 × 210,491,102.88
  4. Step 4: Simplify right side
    386,691,614.64x = 112,327,686,514,573,584
  5. Step 5: Solve for x
    x = 112,327,686,514,573,584/386,691,614.64
  6. Step 6: Final answer
    x = 290,483,895.34

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.