Home / 839,809,217.70-1,259,713,826.55-785,389,659.30

Finding the Fourth Proportional to 839,809,217.70, 1,259,713,826.55 and 785,389,659.30

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Solution

The fourth proportional to 839,809,217.70, 1,259,713,826.55 and 785,389,659.30 is: 1,178,084,488.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,809,217.70 : 1,259,713,826.55 = 785,389,659.30 : x
  2. Step 2: Convert to fraction form
    839,809,217.70/1,259,713,826.55 = 785,389,659.30/x
  3. Step 3: Cross multiply
    839,809,217.70x = 1,259,713,826.55 × 785,389,659.30
  4. Step 4: Simplify right side
    839,809,217.70x = 989,366,213,049,603,712
  5. Step 5: Solve for x
    x = 989,366,213,049,603,712/839,809,217.70
  6. Step 6: Final answer
    x = 1,178,084,488.95

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1.5x scale

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.