Home / 13,540,434.40-20,315,707.74-5,455,703.71

Finding the Fourth Proportional to 13,540,434.40, 20,315,707.74 and 5,455,703.71

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Solution

The fourth proportional to 13,540,434.40, 20,315,707.74 and 5,455,703.71 is: 8,185,592.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,540,434.40 : 20,315,707.74 = 5,455,703.71 : x
  2. Step 2: Convert to fraction form
    13,540,434.40/20,315,707.74 = 5,455,703.71/x
  3. Step 3: Cross multiply
    13,540,434.40x = 20,315,707.74 × 5,455,703.71
  4. Step 4: Simplify right side
    13,540,434.40x = 110,836,482,088,393.70
  5. Step 5: Solve for x
    x = 110,836,482,088,393.70/13,540,434.40
  6. Step 6: Final answer
    x = 8,185,592.78

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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.