Home / 20,476,911.51-28,257,951.81-11,184,479.61

Finding the Fourth Proportional to 20,476,911.51, 28,257,951.81 and 11,184,479.61

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Solution

The fourth proportional to 20,476,911.51, 28,257,951.81 and 11,184,479.61 is: 15,434,480.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,476,911.51 : 28,257,951.81 = 11,184,479.61 : x
  2. Step 2: Convert to fraction form
    20,476,911.51/28,257,951.81 = 11,184,479.61/x
  3. Step 3: Cross multiply
    20,476,911.51x = 28,257,951.81 × 11,184,479.61
  4. Step 4: Simplify right side
    20,476,911.51x = 316,050,485,839,307.56
  5. Step 5: Solve for x
    x = 316,050,485,839,307.56/20,476,911.51
  6. Step 6: Final answer
    x = 15,434,480.23

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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.