Home / 1,086,401,722.80-1,629,602,584.20-396,331,489.20

Finding the Fourth Proportional to 1,086,401,722.80, 1,629,602,584.20 and 396,331,489.20

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Solution

The fourth proportional to 1,086,401,722.80, 1,629,602,584.20 and 396,331,489.20 is: 594,497,233.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,401,722.80 : 1,629,602,584.20 = 396,331,489.20 : x
  2. Step 2: Convert to fraction form
    1,086,401,722.80/1,629,602,584.20 = 396,331,489.20/x
  3. Step 3: Cross multiply
    1,086,401,722.80x = 1,629,602,584.20 × 396,331,489.20
  4. Step 4: Simplify right side
    1,086,401,722.80x = 645,862,819,000,154,368
  5. Step 5: Solve for x
    x = 645,862,819,000,154,368/1,086,401,722.80
  6. Step 6: Final answer
    x = 594,497,233.80

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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.