Home / 491,521,933.71-678,273,045.20-268,459,202.67

Finding the Fourth Proportional to 491,521,933.71, 678,273,045.20 and 268,459,202.67

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Solution

The fourth proportional to 491,521,933.71, 678,273,045.20 and 268,459,202.67 is: 370,458,830.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,521,933.71 : 678,273,045.20 = 268,459,202.67 : x
  2. Step 2: Convert to fraction form
    491,521,933.71/678,273,045.20 = 268,459,202.67/x
  3. Step 3: Cross multiply
    491,521,933.71x = 678,273,045.20 × 268,459,202.67
  4. Step 4: Simplify right side
    491,521,933.71x = 182,088,640,905,602,592
  5. Step 5: Solve for x
    x = 182,088,640,905,602,592/491,521,933.71
  6. Step 6: Final answer
    x = 370,458,830.86

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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.