Home / 491,521,928.08-678,273,037.26-268,459,196.80

Finding the Fourth Proportional to 491,521,928.08, 678,273,037.26 and 268,459,196.80

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Solution

The fourth proportional to 491,521,928.08, 678,273,037.26 and 268,459,196.80 is: 370,458,822.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,521,928.08 : 678,273,037.26 = 268,459,196.80 : x
  2. Step 2: Convert to fraction form
    491,521,928.08/678,273,037.26 = 268,459,196.80/x
  3. Step 3: Cross multiply
    491,521,928.08x = 678,273,037.26 × 268,459,196.80
  4. Step 4: Simplify right side
    491,521,928.08x = 182,088,634,793,916,064
  5. Step 5: Solve for x
    x = 182,088,634,793,916,064/491,521,928.08
  6. Step 6: Final answer
    x = 370,458,822.67

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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.