Home / 805,969,758.40-1,208,954,637.60-295,300,139.20

Finding the Fourth Proportional to 805,969,758.40, 1,208,954,637.60 and 295,300,139.20

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Solution

The fourth proportional to 805,969,758.40, 1,208,954,637.60 and 295,300,139.20 is: 442,950,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,969,758.40 : 1,208,954,637.60 = 295,300,139.20 : x
  2. Step 2: Convert to fraction form
    805,969,758.40/1,208,954,637.60 = 295,300,139.20/x
  3. Step 3: Cross multiply
    805,969,758.40x = 1,208,954,637.60 × 295,300,139.20
  4. Step 4: Simplify right side
    805,969,758.40x = 357,004,472,769,765,504
  5. Step 5: Solve for x
    x = 357,004,472,769,765,504/805,969,758.40
  6. Step 6: Final answer
    x = 442,950,208.80

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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.