Home / 491,318,784,017.40-736,978,176,026.10-411,975,067,870.20

Finding the Fourth Proportional to 491,318,784,017.40, 736,978,176,026.10 and 411,975,067,870.20

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Solution

The fourth proportional to 491,318,784,017.40, 736,978,176,026.10 and 411,975,067,870.20 is: 617,962,601,805.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,318,784,017.40 : 736,978,176,026.10 = 411,975,067,870.20 : x
  2. Step 2: Convert to fraction form
    491,318,784,017.40/736,978,176,026.10 = 411,975,067,870.20/x
  3. Step 3: Cross multiply
    491,318,784,017.40x = 736,978,176,026.10 × 411,975,067,870.20
  4. Step 4: Simplify right side
    491,318,784,017.40x = 303,616,634,087,208,780,824,576
  5. Step 5: Solve for x
    x = 303,616,634,087,208,780,824,576/491,318,784,017.40
  6. Step 6: Final answer
    x = 617,962,601,805.30

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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.