Home / 18,145,965.81-25,041,357.77-9,886,002.72

Finding the Fourth Proportional to 18,145,965.81, 25,041,357.77 and 9,886,002.72

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Solution

The fourth proportional to 18,145,965.81, 25,041,357.77 and 9,886,002.72 is: 13,642,642.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145,965.81 : 25,041,357.77 = 9,886,002.72 : x
  2. Step 2: Convert to fraction form
    18,145,965.81/25,041,357.77 = 9,886,002.72/x
  3. Step 3: Cross multiply
    18,145,965.81x = 25,041,357.77 × 9,886,002.72
  4. Step 4: Simplify right side
    18,145,965.81x = 247,558,930,883,378.06
  5. Step 5: Solve for x
    x = 247,558,930,883,378.06/18,145,965.81
  6. Step 6: Final answer
    x = 13,642,642.86

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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.