Home / 266,389,489.20-399,579,827.94-79,643,867.88

Finding the Fourth Proportional to 266,389,489.20, 399,579,827.94 and 79,643,867.88

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Solution

The fourth proportional to 266,389,489.20, 399,579,827.94 and 79,643,867.88 is: 119,464,484.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,389,489.20 : 399,579,827.94 = 79,643,867.88 : x
  2. Step 2: Convert to fraction form
    266,389,489.20/399,579,827.94 = 79,643,867.88/x
  3. Step 3: Cross multiply
    266,389,489.20x = 399,579,827.94 × 79,643,867.88
  4. Step 4: Simplify right side
    266,389,489.20x = 31,824,083,023,966,492
  5. Step 5: Solve for x
    x = 31,824,083,023,966,492/266,389,489.20
  6. Step 6: Final answer
    x = 119,464,484.58

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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.