Home / 1,439,673,987.72-1,986,752,019.06-779,625,404.04

Finding the Fourth Proportional to 1,439,673,987.72, 1,986,752,019.06 and 779,625,404.04

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Solution

The fourth proportional to 1,439,673,987.72, 1,986,752,019.06 and 779,625,404.04 is: 1,075,884,095.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,673,987.72 : 1,986,752,019.06 = 779,625,404.04 : x
  2. Step 2: Convert to fraction form
    1,439,673,987.72/1,986,752,019.06 = 779,625,404.04/x
  3. Step 3: Cross multiply
    1,439,673,987.72x = 1,986,752,019.06 × 779,625,404.04
  4. Step 4: Simplify right side
    1,439,673,987.72x = 1,548,922,345,586,938,112
  5. Step 5: Solve for x
    x = 1,548,922,345,586,938,112/1,439,673,987.72
  6. Step 6: Final answer
    x = 1,075,884,095.15

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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.