Home / 13,106,041.20-18,086,420.81-7,305,190.76

Finding the Fourth Proportional to 13,106,041.20, 18,086,420.81 and 7,305,190.76

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Solution

The fourth proportional to 13,106,041.20, 18,086,420.81 and 7,305,190.76 is: 10,081,210.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,106,041.20 : 18,086,420.81 = 7,305,190.76 : x
  2. Step 2: Convert to fraction form
    13,106,041.20/18,086,420.81 = 7,305,190.76/x
  3. Step 3: Cross multiply
    13,106,041.20x = 18,086,420.81 × 7,305,190.76
  4. Step 4: Simplify right side
    13,106,041.20x = 132,124,754,246,162.75
  5. Step 5: Solve for x
    x = 132,124,754,246,162.75/13,106,041.20
  6. Step 6: Final answer
    x = 10,081,210.05

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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.