Home / 18,868,118.40-28,236,859.20-11,300,515.20

Finding the Fourth Proportional to 18,868,118.40, 28,236,859.20 and 11,300,515.20

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Solution

The fourth proportional to 18,868,118.40, 28,236,859.20 and 11,300,515.20 is: 16,911,652.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,868,118.40 : 28,236,859.20 = 11,300,515.20 : x
  2. Step 2: Convert to fraction form
    18,868,118.40/28,236,859.20 = 11,300,515.20/x
  3. Step 3: Cross multiply
    18,868,118.40x = 28,236,859.20 × 11,300,515.20
  4. Step 4: Simplify right side
    18,868,118.40x = 319,091,056,589,859.81
  5. Step 5: Solve for x
    x = 319,091,056,589,859.81/18,868,118.40
  6. Step 6: Final answer
    x = 16,911,652.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.