Home / 388,245,873.55-582,450,611.71-125,909,969.08

Finding the Fourth Proportional to 388,245,873.55, 582,450,611.71 and 125,909,969.08

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Solution

The fourth proportional to 388,245,873.55, 582,450,611.71 and 125,909,969.08 is: 188,891,482.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,245,873.55 : 582,450,611.71 = 125,909,969.08 : x
  2. Step 2: Convert to fraction form
    388,245,873.55/582,450,611.71 = 125,909,969.08/x
  3. Step 3: Cross multiply
    388,245,873.55x = 582,450,611.71 × 125,909,969.08
  4. Step 4: Simplify right side
    388,245,873.55x = 73,336,338,511,033,184
  5. Step 5: Solve for x
    x = 73,336,338,511,033,184/388,245,873.55
  6. Step 6: Final answer
    x = 188,891,482.20

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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.