Home / 491,701,537.16-678,539,925.24-268,678,319.30

Finding the Fourth Proportional to 491,701,537.16, 678,539,925.24 and 268,678,319.30

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Solution

The fourth proportional to 491,701,537.16, 678,539,925.24 and 268,678,319.30 is: 370,771,602.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,701,537.16 : 678,539,925.24 = 268,678,319.30 : x
  2. Step 2: Convert to fraction form
    491,701,537.16/678,539,925.24 = 268,678,319.30/x
  3. Step 3: Cross multiply
    491,701,537.16x = 678,539,925.24 × 268,678,319.30
  4. Step 4: Simplify right side
    491,701,537.16x = 182,308,966,691,430,848
  5. Step 5: Solve for x
    x = 182,308,966,691,430,848/491,701,537.16
  6. Step 6: Final answer
    x = 370,771,602.11

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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.