Home / 491,457,893.37-678,207,861.59-268,439,717.13

Finding the Fourth Proportional to 491,457,893.37, 678,207,861.59 and 268,439,717.13

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Solution

The fourth proportional to 491,457,893.37, 678,207,861.59 and 268,439,717.13 is: 370,444,607.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,457,893.37 : 678,207,861.59 = 268,439,717.13 : x
  2. Step 2: Convert to fraction form
    491,457,893.37/678,207,861.59 = 268,439,717.13/x
  3. Step 3: Cross multiply
    491,457,893.37x = 678,207,861.59 × 268,439,717.13
  4. Step 4: Simplify right side
    491,457,893.37x = 182,057,926,519,219,616
  5. Step 5: Solve for x
    x = 182,057,926,519,219,616/491,457,893.37
  6. Step 6: Final answer
    x = 370,444,607.72

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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.