Home / 206,986,428,508.40-310,479,642,762.60-171,653,679,911.60

Finding the Fourth Proportional to 206,986,428,508.40, 310,479,642,762.60 and 171,653,679,911.60

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Solution

The fourth proportional to 206,986,428,508.40, 310,479,642,762.60 and 171,653,679,911.60 is: 257,480,519,867.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,986,428,508.40 : 310,479,642,762.60 = 171,653,679,911.60 : x
  2. Step 2: Convert to fraction form
    206,986,428,508.40/310,479,642,762.60 = 171,653,679,911.60/x
  3. Step 3: Cross multiply
    206,986,428,508.40x = 310,479,642,762.60 × 171,653,679,911.60
  4. Step 4: Simplify right side
    206,986,428,508.40x = 53,294,973,217,839,257,747,456
  5. Step 5: Solve for x
    x = 53,294,973,217,839,257,747,456/206,986,428,508.40
  6. Step 6: Final answer
    x = 257,480,519,867.40

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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.