Home / 491,494,219.15-678,264,334.16-268,478,994.77

Finding the Fourth Proportional to 491,494,219.15, 678,264,334.16 and 268,478,994.77

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Solution

The fourth proportional to 491,494,219.15, 678,264,334.16 and 268,478,994.77 is: 370,502,275.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,494,219.15 : 678,264,334.16 = 268,478,994.77 : x
  2. Step 2: Convert to fraction form
    491,494,219.15/678,264,334.16 = 268,478,994.77/x
  3. Step 3: Cross multiply
    491,494,219.15x = 678,264,334.16 × 268,478,994.77
  4. Step 4: Simplify right side
    491,494,219.15x = 182,099,726,623,620,160
  5. Step 5: Solve for x
    x = 182,099,726,623,620,160/491,494,219.15
  6. Step 6: Final answer
    x = 370,502,275.57

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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.