Home / 30,888,742.37-42,626,469.78-17,137,673.69

Finding the Fourth Proportional to 30,888,742.37, 42,626,469.78 and 17,137,673.69

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Solution

The fourth proportional to 30,888,742.37, 42,626,469.78 and 17,137,673.69 is: 23,649,992.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,888,742.37 : 42,626,469.78 = 17,137,673.69 : x
  2. Step 2: Convert to fraction form
    30,888,742.37/42,626,469.78 = 17,137,673.69/x
  3. Step 3: Cross multiply
    30,888,742.37x = 42,626,469.78 × 17,137,673.69
  4. Step 4: Simplify right side
    30,888,742.37x = 730,518,529,433,153.75
  5. Step 5: Solve for x
    x = 730,518,529,433,153.75/30,888,742.37
  6. Step 6: Final answer
    x = 23,649,992.63

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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.