Home / 13,181,095.19-18,190,660.91-7,379,826.18

Finding the Fourth Proportional to 13,181,095.19, 18,190,660.91 and 7,379,826.18

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Solution

The fourth proportional to 13,181,095.19, 18,190,660.91 and 7,379,826.18 is: 10,184,579.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,181,095.19 : 18,190,660.91 = 7,379,826.18 : x
  2. Step 2: Convert to fraction form
    13,181,095.19/18,190,660.91 = 7,379,826.18/x
  3. Step 3: Cross multiply
    13,181,095.19x = 18,190,660.91 × 7,379,826.18
  4. Step 4: Simplify right side
    13,181,095.19x = 134,243,915,578,221.50
  5. Step 5: Solve for x
    x = 134,243,915,578,221.50/13,181,095.19
  6. Step 6: Final answer
    x = 10,184,579.79

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Double scale
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1.5x scale

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.