Home / 18,262,020.36-25,201,105.72-10,421,392.08

Finding the Fourth Proportional to 18,262,020.36, 25,201,105.72 and 10,421,392.08

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Solution

The fourth proportional to 18,262,020.36, 25,201,105.72 and 10,421,392.08 is: 14,381,245.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,262,020.36 : 25,201,105.72 = 10,421,392.08 : x
  2. Step 2: Convert to fraction form
    18,262,020.36/25,201,105.72 = 10,421,392.08/x
  3. Step 3: Cross multiply
    18,262,020.36x = 25,201,105.72 × 10,421,392.08
  4. Step 4: Simplify right side
    18,262,020.36x = 262,630,603,557,650.69
  5. Step 5: Solve for x
    x = 262,630,603,557,650.69/18,262,020.36
  6. Step 6: Final answer
    x = 14,381,245.80

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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.