Home / 491,632,045.18-678,444,196.47-268,608,927.34

Finding the Fourth Proportional to 491,632,045.18, 678,444,196.47 and 268,608,927.34

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Solution

The fourth proportional to 491,632,045.18, 678,444,196.47 and 268,608,927.34 is: 370,675,934.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,632,045.18 : 678,444,196.47 = 268,608,927.34 : x
  2. Step 2: Convert to fraction form
    491,632,045.18/678,444,196.47 = 268,608,927.34/x
  3. Step 3: Cross multiply
    491,632,045.18x = 678,444,196.47 × 268,608,927.34
  4. Step 4: Simplify right side
    491,632,045.18x = 182,236,167,873,854,912
  5. Step 5: Solve for x
    x = 182,236,167,873,854,912/491,632,045.18
  6. Step 6: Final answer
    x = 370,675,934.70

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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.