Home / 492,412,911.85-679,545,927.39-269,389,419.94

Finding the Fourth Proportional to 492,412,911.85, 679,545,927.39 and 269,389,419.94

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Solution

The fourth proportional to 492,412,911.85, 679,545,927.39 and 269,389,419.94 is: 371,766,212.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,412,911.85 : 679,545,927.39 = 269,389,419.94 : x
  2. Step 2: Convert to fraction form
    492,412,911.85/679,545,927.39 = 269,389,419.94/x
  3. Step 3: Cross multiply
    492,412,911.85x = 679,545,927.39 × 269,389,419.94
  4. Step 4: Simplify right side
    492,412,911.85x = 183,062,483,202,181,440
  5. Step 5: Solve for x
    x = 183,062,483,202,181,440/492,412,911.85
  6. Step 6: Final answer
    x = 371,766,212.45

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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.