Home / 299,642,856.31-449,454,153.79-105,549,199.12

Finding the Fourth Proportional to 299,642,856.31, 449,454,153.79 and 105,549,199.12

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Solution

The fourth proportional to 299,642,856.31, 449,454,153.79 and 105,549,199.12 is: 158,320,230.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,642,856.31 : 449,454,153.79 = 105,549,199.12 : x
  2. Step 2: Convert to fraction form
    299,642,856.31/449,454,153.79 = 105,549,199.12/x
  3. Step 3: Cross multiply
    299,642,856.31x = 449,454,153.79 × 105,549,199.12
  4. Step 4: Simplify right side
    299,642,856.31x = 47,439,525,973,691,816
  5. Step 5: Solve for x
    x = 47,439,525,973,691,816/299,642,856.31
  6. Step 6: Final answer
    x = 158,320,230.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.