Home / 1,018,380,568,403.80-1,405,366,578,137.90-555,408,726,232.56

Finding the Fourth Proportional to 1,018,380,568,403.80, 1,405,366,578,137.90 and 555,408,726,232.56

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Solution

The fourth proportional to 1,018,380,568,403.80, 1,405,366,578,137.90 and 555,408,726,232.56 is: 766,464,802,325.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,380,568,403.80 : 1,405,366,578,137.90 = 555,408,726,232.56 : x
  2. Step 2: Convert to fraction form
    1,018,380,568,403.80/1,405,366,578,137.90 = 555,408,726,232.56/x
  3. Step 3: Cross multiply
    1,018,380,568,403.80x = 1,405,366,578,137.90 × 555,408,726,232.56
  4. Step 4: Simplify right side
    1,018,380,568,403.80x = 780,552,861,053,382,572,376,064
  5. Step 5: Solve for x
    x = 780,552,861,053,382,572,376,064/1,018,380,568,403.80
  6. Step 6: Final answer
    x = 766,464,802,325.14

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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.