Home / 20,128,801.08-30,188,915.10-5,748,051.36

Finding the Fourth Proportional to 20,128,801.08, 30,188,915.10 and 5,748,051.36

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Solution

The fourth proportional to 20,128,801.08, 30,188,915.10 and 5,748,051.36 is: 8,620,852.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,128,801.08 : 30,188,915.10 = 5,748,051.36 : x
  2. Step 2: Convert to fraction form
    20,128,801.08/30,188,915.10 = 5,748,051.36/x
  3. Step 3: Cross multiply
    20,128,801.08x = 30,188,915.10 × 5,748,051.36
  4. Step 4: Simplify right side
    20,128,801.08x = 173,527,434,497,479.56
  5. Step 5: Solve for x
    x = 173,527,434,497,479.56/20,128,801.08
  6. Step 6: Final answer
    x = 8,620,852.97

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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.