Home / 839,809,077.20-1,259,713,615.80-811,591,528.40

Finding the Fourth Proportional to 839,809,077.20, 1,259,713,615.80 and 811,591,528.40

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Solution

The fourth proportional to 839,809,077.20, 1,259,713,615.80 and 811,591,528.40 is: 1,217,387,292.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,809,077.20 : 1,259,713,615.80 = 811,591,528.40 : x
  2. Step 2: Convert to fraction form
    839,809,077.20/1,259,713,615.80 = 811,591,528.40/x
  3. Step 3: Cross multiply
    839,809,077.20x = 1,259,713,615.80 × 811,591,528.40
  4. Step 4: Simplify right side
    839,809,077.20x = 1,022,372,898,793,412,352
  5. Step 5: Solve for x
    x = 1,022,372,898,793,412,352/839,809,077.20
  6. Step 6: Final answer
    x = 1,217,387,292.60

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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.