Home / 18,520,786.89-25,556,617.80-10,258,799.45

Finding the Fourth Proportional to 18,520,786.89, 25,556,617.80 and 10,258,799.45

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Solution

The fourth proportional to 18,520,786.89, 25,556,617.80 and 10,258,799.45 is: 14,155,997.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520,786.89 : 25,556,617.80 = 10,258,799.45 : x
  2. Step 2: Convert to fraction form
    18,520,786.89/25,556,617.80 = 10,258,799.45/x
  3. Step 3: Cross multiply
    18,520,786.89x = 25,556,617.80 × 10,258,799.45
  4. Step 4: Simplify right side
    18,520,786.89x = 262,180,216,502,717.12
  5. Step 5: Solve for x
    x = 262,180,216,502,717.12/18,520,786.89
  6. Step 6: Final answer
    x = 14,155,997.69

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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.