Home / 1,115,150,566.95-1,538,908,571.86-613,397,525.36

Finding the Fourth Proportional to 1,115,150,566.95, 1,538,908,571.86 and 613,397,525.36

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Solution

The fourth proportional to 1,115,150,566.95, 1,538,908,571.86 and 613,397,525.36 is: 846,489,019.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,150,566.95 : 1,538,908,571.86 = 613,397,525.36 : x
  2. Step 2: Convert to fraction form
    1,115,150,566.95/1,538,908,571.86 = 613,397,525.36/x
  3. Step 3: Cross multiply
    1,115,150,566.95x = 1,538,908,571.86 × 613,397,525.36
  4. Step 4: Simplify right side
    1,115,150,566.95x = 943,962,709,724,987,776
  5. Step 5: Solve for x
    x = 943,962,709,724,987,776/1,115,150,566.95
  6. Step 6: Final answer
    x = 846,489,019.24

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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.