Home / 729,244,363.61-1,006,357,270.90-399,219,502.61

Finding the Fourth Proportional to 729,244,363.61, 1,006,357,270.90 and 399,219,502.61

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Solution

The fourth proportional to 729,244,363.61, 1,006,357,270.90 and 399,219,502.61 is: 550,922,940.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,244,363.61 : 1,006,357,270.90 = 399,219,502.61 : x
  2. Step 2: Convert to fraction form
    729,244,363.61/1,006,357,270.90 = 399,219,502.61/x
  3. Step 3: Cross multiply
    729,244,363.61x = 1,006,357,270.90 × 399,219,502.61
  4. Step 4: Simplify right side
    729,244,363.61x = 401,757,449,136,655,040
  5. Step 5: Solve for x
    x = 401,757,449,136,655,040/729,244,363.61
  6. Step 6: Final answer
    x = 550,922,940.49

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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.