Home / 1,408,921,734.09-2,111,544,147.42-787,111,849.24

Finding the Fourth Proportional to 1,408,921,734.09, 2,111,544,147.42 and 787,111,849.24

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Solution

The fourth proportional to 1,408,921,734.09, 2,111,544,147.42 and 787,111,849.24 is: 1,179,640,698.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,921,734.09 : 2,111,544,147.42 = 787,111,849.24 : x
  2. Step 2: Convert to fraction form
    1,408,921,734.09/2,111,544,147.42 = 787,111,849.24/x
  3. Step 3: Cross multiply
    1,408,921,734.09x = 2,111,544,147.42 × 787,111,849.24
  4. Step 4: Simplify right side
    1,408,921,734.09x = 1,662,021,418,627,655,424
  5. Step 5: Solve for x
    x = 1,662,021,418,627,655,424/1,408,921,734.09
  6. Step 6: Final answer
    x = 1,179,640,698.57

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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.