Home / 13,184,143.80-19,787,879.70-7,786,044.60

Finding the Fourth Proportional to 13,184,143.80, 19,787,879.70 and 7,786,044.60

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Solution

The fourth proportional to 13,184,143.80, 19,787,879.70 and 7,786,044.60 is: 11,685,955.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,184,143.80 : 19,787,879.70 = 7,786,044.60 : x
  2. Step 2: Convert to fraction form
    13,184,143.80/19,787,879.70 = 7,786,044.60/x
  3. Step 3: Cross multiply
    13,184,143.80x = 19,787,879.70 × 7,786,044.60
  4. Step 4: Simplify right side
    13,184,143.80x = 154,069,313,883,634.59
  5. Step 5: Solve for x
    x = 154,069,313,883,634.59/13,184,143.80
  6. Step 6: Final answer
    x = 11,685,955.21

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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.