Home / 1,439,673,972.72-1,986,751,998.36-779,625,389.04

Finding the Fourth Proportional to 1,439,673,972.72, 1,986,751,998.36 and 779,625,389.04

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Solution

The fourth proportional to 1,439,673,972.72, 1,986,751,998.36 and 779,625,389.04 is: 1,075,884,074.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,673,972.72 : 1,986,751,998.36 = 779,625,389.04 : x
  2. Step 2: Convert to fraction form
    1,439,673,972.72/1,986,751,998.36 = 779,625,389.04/x
  3. Step 3: Cross multiply
    1,439,673,972.72x = 1,986,751,998.36 × 779,625,389.04
  4. Step 4: Simplify right side
    1,439,673,972.72x = 1,548,922,299,647,412,224
  5. Step 5: Solve for x
    x = 1,548,922,299,647,412,224/1,439,673,972.72
  6. Step 6: Final answer
    x = 1,075,884,074.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.