Home / 9,209,709.72-12,710,620.44-5,341,431.60

Finding the Fourth Proportional to 9,209,709.72, 12,710,620.44 and 5,341,431.60

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Solution

The fourth proportional to 9,209,709.72, 12,710,620.44 and 5,341,431.60 is: 7,371,883.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,209,709.72 : 12,710,620.44 = 5,341,431.60 : x
  2. Step 2: Convert to fraction form
    9,209,709.72/12,710,620.44 = 5,341,431.60/x
  3. Step 3: Cross multiply
    9,209,709.72x = 12,710,620.44 × 5,341,431.60
  4. Step 4: Simplify right side
    9,209,709.72x = 67,892,909,673,821.90
  5. Step 5: Solve for x
    x = 67,892,909,673,821.90/9,209,709.72
  6. Step 6: Final answer
    x = 7,371,883.78

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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.