Home / 492,958,943.28-680,304,599.28-272,942,388.72

Finding the Fourth Proportional to 492,958,943.28, 680,304,599.28 and 272,942,388.72

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Solution

The fourth proportional to 492,958,943.28, 680,304,599.28 and 272,942,388.72 is: 376,672,266.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,958,943.28 : 680,304,599.28 = 272,942,388.72 : x
  2. Step 2: Convert to fraction form
    492,958,943.28/680,304,599.28 = 272,942,388.72/x
  3. Step 3: Cross multiply
    492,958,943.28x = 680,304,599.28 × 272,942,388.72
  4. Step 4: Simplify right side
    492,958,943.28x = 185,683,962,384,685,600
  5. Step 5: Solve for x
    x = 185,683,962,384,685,600/492,958,943.28
  6. Step 6: Final answer
    x = 376,672,266.35

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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.