Home / 13,184,879.20-19,783,002.16-7,118,406.32

Finding the Fourth Proportional to 13,184,879.20, 19,783,002.16 and 7,118,406.32

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Solution

The fourth proportional to 13,184,879.20, 19,783,002.16 and 7,118,406.32 is: 10,680,677.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,184,879.20 : 19,783,002.16 = 7,118,406.32 : x
  2. Step 2: Convert to fraction form
    13,184,879.20/19,783,002.16 = 7,118,406.32/x
  3. Step 3: Cross multiply
    13,184,879.20x = 19,783,002.16 × 7,118,406.32
  4. Step 4: Simplify right side
    13,184,879.20x = 140,823,447,604,317.66
  5. Step 5: Solve for x
    x = 140,823,447,604,317.66/13,184,879.20
  6. Step 6: Final answer
    x = 10,680,677.88

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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.