Home / 15,346,738.36-21,178,495.78-8,471,218.60

Finding the Fourth Proportional to 15,346,738.36, 21,178,495.78 and 8,471,218.60

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Solution

The fourth proportional to 15,346,738.36, 21,178,495.78 and 8,471,218.60 is: 11,690,279.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,346,738.36 : 21,178,495.78 = 8,471,218.60 : x
  2. Step 2: Convert to fraction form
    15,346,738.36/21,178,495.78 = 8,471,218.60/x
  3. Step 3: Cross multiply
    15,346,738.36x = 21,178,495.78 × 8,471,218.60
  4. Step 4: Simplify right side
    15,346,738.36x = 179,407,667,371,557.50
  5. Step 5: Solve for x
    x = 179,407,667,371,557.50/15,346,738.36
  6. Step 6: Final answer
    x = 11,690,279.93

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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.