Home / 1,927,209,261.80-2,660,420,221.46-1,213,793,282.96

Finding the Fourth Proportional to 1,927,209,261.80, 2,660,420,221.46 and 1,213,793,282.96

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Solution

The fourth proportional to 1,927,209,261.80, 2,660,420,221.46 and 1,213,793,282.96 is: 1,675,583,580.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927,209,261.80 : 2,660,420,221.46 = 1,213,793,282.96 : x
  2. Step 2: Convert to fraction form
    1,927,209,261.80/2,660,420,221.46 = 1,213,793,282.96/x
  3. Step 3: Cross multiply
    1,927,209,261.80x = 2,660,420,221.46 × 1,213,793,282.96
  4. Step 4: Simplify right side
    1,927,209,261.80x = 3,229,200,194,654,454,784
  5. Step 5: Solve for x
    x = 3,229,200,194,654,454,784/1,927,209,261.80
  6. Step 6: Final answer
    x = 1,675,583,580.18

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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.