Home / 1,263,501,145.32-1,743,579,198.94-691,281,390.31

Finding the Fourth Proportional to 1,263,501,145.32, 1,743,579,198.94 and 691,281,390.31

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Solution

The fourth proportional to 1,263,501,145.32, 1,743,579,198.94 and 691,281,390.31 is: 953,939,659.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,501,145.32 : 1,743,579,198.94 = 691,281,390.31 : x
  2. Step 2: Convert to fraction form
    1,263,501,145.32/1,743,579,198.94 = 691,281,390.31/x
  3. Step 3: Cross multiply
    1,263,501,145.32x = 1,743,579,198.94 × 691,281,390.31
  4. Step 4: Simplify right side
    1,263,501,145.32x = 1,205,303,852,756,692,480
  5. Step 5: Solve for x
    x = 1,205,303,852,756,692,480/1,263,501,145.32
  6. Step 6: Final answer
    x = 953,939,659.82

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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.