Home / 492,276,713.62-679,551,041.01-306,729,404.50

Finding the Fourth Proportional to 492,276,713.62, 679,551,041.01 and 306,729,404.50

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Solution

The fourth proportional to 492,276,713.62, 679,551,041.01 and 306,729,404.50 is: 423,416,912.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,276,713.62 : 679,551,041.01 = 306,729,404.50 : x
  2. Step 2: Convert to fraction form
    492,276,713.62/679,551,041.01 = 306,729,404.50/x
  3. Step 3: Cross multiply
    492,276,713.62x = 679,551,041.01 × 306,729,404.50
  4. Step 4: Simplify right side
    492,276,713.62x = 208,438,286,136,352,384
  5. Step 5: Solve for x
    x = 208,438,286,136,352,384/492,276,713.62
  6. Step 6: Final answer
    x = 423,416,912.42

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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.