Home / 290,704,629.03-436,121,758.12-83,426,881.69

Finding the Fourth Proportional to 290,704,629.03, 436,121,758.12 and 83,426,881.69

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Solution

The fourth proportional to 290,704,629.03, 436,121,758.12 and 83,426,881.69 is: 125,158,923.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,704,629.03 : 436,121,758.12 = 83,426,881.69 : x
  2. Step 2: Convert to fraction form
    290,704,629.03/436,121,758.12 = 83,426,881.69/x
  3. Step 3: Cross multiply
    290,704,629.03x = 436,121,758.12 × 83,426,881.69
  4. Step 4: Simplify right side
    290,704,629.03x = 36,384,278,317,112,040
  5. Step 5: Solve for x
    x = 36,384,278,317,112,040/290,704,629.03
  6. Step 6: Final answer
    x = 125,158,923.13

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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.