Home / 1,259,713,979.20-1,889,570,968.80-933,196,628.80

Finding the Fourth Proportional to 1,259,713,979.20, 1,889,570,968.80 and 933,196,628.80

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Solution

The fourth proportional to 1,259,713,979.20, 1,889,570,968.80 and 933,196,628.80 is: 1,399,794,943.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,713,979.20 : 1,889,570,968.80 = 933,196,628.80 : x
  2. Step 2: Convert to fraction form
    1,259,713,979.20/1,889,570,968.80 = 933,196,628.80/x
  3. Step 3: Cross multiply
    1,259,713,979.20x = 1,889,570,968.80 × 933,196,628.80
  4. Step 4: Simplify right side
    1,259,713,979.20x = 1,763,341,257,962,509,824
  5. Step 5: Solve for x
    x = 1,763,341,257,962,509,824/1,259,713,979.20
  6. Step 6: Final answer
    x = 1,399,794,943.20

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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.