Home / 931,438,926,014.80-1,397,158,389,022.20-772,441,557,329.20

Finding the Fourth Proportional to 931,438,926,014.80, 1,397,158,389,022.20 and 772,441,557,329.20

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Solution

The fourth proportional to 931,438,926,014.80, 1,397,158,389,022.20 and 772,441,557,329.20 is: 1,158,662,335,993.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,438,926,014.80 : 1,397,158,389,022.20 = 772,441,557,329.20 : x
  2. Step 2: Convert to fraction form
    931,438,926,014.80/1,397,158,389,022.20 = 772,441,557,329.20/x
  3. Step 3: Cross multiply
    931,438,926,014.80x = 1,397,158,389,022.20 × 772,441,557,329.20
  4. Step 4: Simplify right side
    931,438,926,014.80x = 1,079,223,201,851,864,277,581,824
  5. Step 5: Solve for x
    x = 1,079,223,201,851,864,277,581,824/931,438,926,014.80
  6. Step 6: Final answer
    x = 1,158,662,335,993.80

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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.