Home / 544,528,965.28-751,727,370-420,491,189.92

Finding the Fourth Proportional to 544,528,965.28, 751,727,370 and 420,491,189.92

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Solution

The fourth proportional to 544,528,965.28, 751,727,370 and 420,491,189.92 is: 580,492,051.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,528,965.28 : 751,727,370 = 420,491,189.92 : x
  2. Step 2: Convert to fraction form
    544,528,965.28/751,727,370 = 420,491,189.92/x
  3. Step 3: Cross multiply
    544,528,965.28x = 751,727,370 × 420,491,189.92
  4. Step 4: Simplify right side
    544,528,965.28x = 316,094,736,306,732,096
  5. Step 5: Solve for x
    x = 316,094,736,306,732,096/544,528,965.28
  6. Step 6: Final answer
    x = 580,492,051.78

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Why These Related Problems?

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