Home / 1,245,237,145.11-1,867,859,263.61-359,994,569.64

Finding the Fourth Proportional to 1,245,237,145.11, 1,867,859,263.61 and 359,994,569.64

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Solution

The fourth proportional to 1,245,237,145.11, 1,867,859,263.61 and 359,994,569.64 is: 539,992,879.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,237,145.11 : 1,867,859,263.61 = 359,994,569.64 : x
  2. Step 2: Convert to fraction form
    1,245,237,145.11/1,867,859,263.61 = 359,994,569.64/x
  3. Step 3: Cross multiply
    1,245,237,145.11x = 1,867,859,263.61 × 359,994,569.64
  4. Step 4: Simplify right side
    1,245,237,145.11x = 672,419,191,751,369,216
  5. Step 5: Solve for x
    x = 672,419,191,751,369,216/1,245,237,145.11
  6. Step 6: Final answer
    x = 539,992,879.58

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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.