Home / 18,430,905.51-25,434,660.42-10,282,143.51

Finding the Fourth Proportional to 18,430,905.51, 25,434,660.42 and 10,282,143.51

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Solution

The fourth proportional to 18,430,905.51, 25,434,660.42 and 10,282,143.51 is: 14,189,364.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,430,905.51 : 25,434,660.42 = 10,282,143.51 : x
  2. Step 2: Convert to fraction form
    18,430,905.51/25,434,660.42 = 10,282,143.51/x
  3. Step 3: Cross multiply
    18,430,905.51x = 25,434,660.42 × 10,282,143.51
  4. Step 4: Simplify right side
    18,430,905.51x = 261,522,828,566,556.88
  5. Step 5: Solve for x
    x = 261,522,828,566,556.88/18,430,905.51
  6. Step 6: Final answer
    x = 14,189,364.08

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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.