Home / 491,548,436.16-678,346,841.52-268,544,561.74

Finding the Fourth Proportional to 491,548,436.16, 678,346,841.52 and 268,544,561.74

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Solution

The fourth proportional to 491,548,436.16, 678,346,841.52 and 268,544,561.74 is: 370,596,958.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,548,436.16 : 678,346,841.52 = 268,544,561.74 : x
  2. Step 2: Convert to fraction form
    491,548,436.16/678,346,841.52 = 268,544,561.74/x
  3. Step 3: Cross multiply
    491,548,436.16x = 678,346,841.52 × 268,544,561.74
  4. Step 4: Simplify right side
    491,548,436.16x = 182,166,355,263,701,632
  5. Step 5: Solve for x
    x = 182,166,355,263,701,632/491,548,436.16
  6. Step 6: Final answer
    x = 370,596,958.23

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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.