Home / 2,221,620,977.86-3,065,866,792.04-1,218,036,114.88

Finding the Fourth Proportional to 2,221,620,977.86, 3,065,866,792.04 and 1,218,036,114.88

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Solution

The fourth proportional to 2,221,620,977.86, 3,065,866,792.04 and 1,218,036,114.88 is: 1,680,906,200.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221,620,977.86 : 3,065,866,792.04 = 1,218,036,114.88 : x
  2. Step 2: Convert to fraction form
    2,221,620,977.86/3,065,866,792.04 = 1,218,036,114.88/x
  3. Step 3: Cross multiply
    2,221,620,977.86x = 3,065,866,792.04 × 1,218,036,114.88
  4. Step 4: Simplify right side
    2,221,620,977.86x = 3,734,336,476,116,011,008
  5. Step 5: Solve for x
    x = 3,734,336,476,116,011,008/2,221,620,977.86
  6. Step 6: Final answer
    x = 1,680,906,200.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.