Home / 491,701,521.16-678,539,903.16-268,678,303.30

Finding the Fourth Proportional to 491,701,521.16, 678,539,903.16 and 268,678,303.30

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Solution

The fourth proportional to 491,701,521.16, 678,539,903.16 and 268,678,303.30 is: 370,771,580.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,701,521.16 : 678,539,903.16 = 268,678,303.30 : x
  2. Step 2: Convert to fraction form
    491,701,521.16/678,539,903.16 = 268,678,303.30/x
  3. Step 3: Cross multiply
    491,701,521.16x = 678,539,903.16 × 268,678,303.30
  4. Step 4: Simplify right side
    491,701,521.16x = 182,308,949,902,375,104
  5. Step 5: Solve for x
    x = 182,308,949,902,375,104/491,701,521.16
  6. Step 6: Final answer
    x = 370,771,580.03

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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.