Home / 1,259,713,600.80-1,889,570,401.20-1,087,384,999.20

Finding the Fourth Proportional to 1,259,713,600.80, 1,889,570,401.20 and 1,087,384,999.20

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Solution

The fourth proportional to 1,259,713,600.80, 1,889,570,401.20 and 1,087,384,999.20 is: 1,631,077,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,713,600.80 : 1,889,570,401.20 = 1,087,384,999.20 : x
  2. Step 2: Convert to fraction form
    1,259,713,600.80/1,889,570,401.20 = 1,087,384,999.20/x
  3. Step 3: Cross multiply
    1,259,713,600.80x = 1,889,570,401.20 × 1,087,384,999.20
  4. Step 4: Simplify right side
    1,259,713,600.80x = 2,054,690,509,197,205,760
  5. Step 5: Solve for x
    x = 2,054,690,509,197,205,760/1,259,713,600.80
  6. Step 6: Final answer
    x = 1,631,077,498.80

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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.