Home / 1,439,673,971.22-1,986,751,996.29-779,625,387.54

Finding the Fourth Proportional to 1,439,673,971.22, 1,986,751,996.29 and 779,625,387.54

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Solution

The fourth proportional to 1,439,673,971.22, 1,986,751,996.29 and 779,625,387.54 is: 1,075,884,072.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,673,971.22 : 1,986,751,996.29 = 779,625,387.54 : x
  2. Step 2: Convert to fraction form
    1,439,673,971.22/1,986,751,996.29 = 779,625,387.54/x
  3. Step 3: Cross multiply
    1,439,673,971.22x = 1,986,751,996.29 × 779,625,387.54
  4. Step 4: Simplify right side
    1,439,673,971.22x = 1,548,922,295,053,459,712
  5. Step 5: Solve for x
    x = 1,548,922,295,053,459,712/1,439,673,971.22
  6. Step 6: Final answer
    x = 1,075,884,072.38

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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.