Home / 492,276,820.98-679,551,188.13-306,729,510.24

Finding the Fourth Proportional to 492,276,820.98, 679,551,188.13 and 306,729,510.24

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Solution

The fourth proportional to 492,276,820.98, 679,551,188.13 and 306,729,510.24 is: 423,417,057.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,276,820.98 : 679,551,188.13 = 306,729,510.24 : x
  2. Step 2: Convert to fraction form
    492,276,820.98/679,551,188.13 = 306,729,510.24/x
  3. Step 3: Cross multiply
    492,276,820.98x = 679,551,188.13 × 306,729,510.24
  4. Step 4: Simplify right side
    492,276,820.98x = 208,438,403,118,124,992
  5. Step 5: Solve for x
    x = 208,438,403,118,124,992/492,276,820.98
  6. Step 6: Final answer
    x = 423,417,057.71

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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.