Home / 491,318,786,658.40-736,978,179,987.60-411,975,070,511.20

Finding the Fourth Proportional to 491,318,786,658.40, 736,978,179,987.60 and 411,975,070,511.20

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Solution

The fourth proportional to 491,318,786,658.40, 736,978,179,987.60 and 411,975,070,511.20 is: 617,962,605,766.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,318,786,658.40 : 736,978,179,987.60 = 411,975,070,511.20 : x
  2. Step 2: Convert to fraction form
    491,318,786,658.40/736,978,179,987.60 = 411,975,070,511.20/x
  3. Step 3: Cross multiply
    491,318,786,658.40x = 736,978,179,987.60 × 411,975,070,511.20
  4. Step 4: Simplify right side
    491,318,786,658.40x = 303,616,637,665,607,357,038,592
  5. Step 5: Solve for x
    x = 303,616,637,665,607,357,038,592/491,318,786,658.40
  6. Step 6: Final answer
    x = 617,962,605,766.80

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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.