Home / 13,069,771.44-19,602,072.78-12,421,658.84

Finding the Fourth Proportional to 13,069,771.44, 19,602,072.78 and 12,421,658.84

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Solution

The fourth proportional to 13,069,771.44, 19,602,072.78 and 12,421,658.84 is: 18,630,032.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,069,771.44 : 19,602,072.78 = 12,421,658.84 : x
  2. Step 2: Convert to fraction form
    13,069,771.44/19,602,072.78 = 12,421,658.84/x
  3. Step 3: Cross multiply
    13,069,771.44x = 19,602,072.78 × 12,421,658.84
  4. Step 4: Simplify right side
    13,069,771.44x = 243,490,260,630,010.38
  5. Step 5: Solve for x
    x = 243,490,260,630,010.38/13,069,771.44
  6. Step 6: Final answer
    x = 18,630,032.04

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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.