Home / 492,276,500.24-679,550,745.50-306,729,189.50

Finding the Fourth Proportional to 492,276,500.24, 679,550,745.50 and 306,729,189.50

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Solution

The fourth proportional to 492,276,500.24, 679,550,745.50 and 306,729,189.50 is: 423,416,615.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,276,500.24 : 679,550,745.50 = 306,729,189.50 : x
  2. Step 2: Convert to fraction form
    492,276,500.24/679,550,745.50 = 306,729,189.50/x
  3. Step 3: Cross multiply
    492,276,500.24x = 679,550,745.50 × 306,729,189.50
  4. Step 4: Simplify right side
    492,276,500.24x = 208,438,049,391,335,776
  5. Step 5: Solve for x
    x = 208,438,049,391,335,776/492,276,500.24
  6. Step 6: Final answer
    x = 423,416,615.03

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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.