Home / 931,448,803.95-1,396,870,940.66-309,497,015.61

Finding the Fourth Proportional to 931,448,803.95, 1,396,870,940.66 and 309,497,015.61

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Solution

The fourth proportional to 931,448,803.95, 1,396,870,940.66 and 309,497,015.61 is: 464,145,088.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,448,803.95 : 1,396,870,940.66 = 309,497,015.61 : x
  2. Step 2: Convert to fraction form
    931,448,803.95/1,396,870,940.66 = 309,497,015.61/x
  3. Step 3: Cross multiply
    931,448,803.95x = 1,396,870,940.66 × 309,497,015.61
  4. Step 4: Simplify right side
    931,448,803.95x = 432,327,387,325,055,936
  5. Step 5: Solve for x
    x = 432,327,387,325,055,936/931,448,803.95
  6. Step 6: Final answer
    x = 464,145,088.27

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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.