Home / 839,808,720.30-1,259,713,080.45-294,353,424.30

Finding the Fourth Proportional to 839,808,720.30, 1,259,713,080.45 and 294,353,424.30

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Solution

The fourth proportional to 839,808,720.30, 1,259,713,080.45 and 294,353,424.30 is: 441,530,136.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,808,720.30 : 1,259,713,080.45 = 294,353,424.30 : x
  2. Step 2: Convert to fraction form
    839,808,720.30/1,259,713,080.45 = 294,353,424.30/x
  3. Step 3: Cross multiply
    839,808,720.30x = 1,259,713,080.45 × 294,353,424.30
  4. Step 4: Simplify right side
    839,808,720.30x = 370,800,858,865,958,912
  5. Step 5: Solve for x
    x = 370,800,858,865,958,912/839,808,720.30
  6. Step 6: Final answer
    x = 441,530,136.45

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Double scale
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Similar ratio
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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.