Home / 28,717,533.89-39,630,449.69-15,664,850.86

Finding the Fourth Proportional to 28,717,533.89, 39,630,449.69 and 15,664,850.86

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Solution

The fourth proportional to 28,717,533.89, 39,630,449.69 and 15,664,850.86 is: 21,617,632.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,717,533.89 : 39,630,449.69 = 15,664,850.86 : x
  2. Step 2: Convert to fraction form
    28,717,533.89/39,630,449.69 = 15,664,850.86/x
  3. Step 3: Cross multiply
    28,717,533.89x = 39,630,449.69 × 15,664,850.86
  4. Step 4: Simplify right side
    28,717,533.89x = 620,805,083,848,669.25
  5. Step 5: Solve for x
    x = 620,805,083,848,669.25/28,717,533.89
  6. Step 6: Final answer
    x = 21,617,632.15

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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.