Home / 20,549,313.75-30,781,077.04-12,325,876.30

Finding the Fourth Proportional to 20,549,313.75, 30,781,077.04 and 12,325,876.30

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Solution

The fourth proportional to 20,549,313.75, 30,781,077.04 and 12,325,876.30 is: 18,463,086.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,549,313.75 : 30,781,077.04 = 12,325,876.30 : x
  2. Step 2: Convert to fraction form
    20,549,313.75/30,781,077.04 = 12,325,876.30/x
  3. Step 3: Cross multiply
    20,549,313.75x = 30,781,077.04 × 12,325,876.30
  4. Step 4: Simplify right side
    20,549,313.75x = 379,403,748,052,762.81
  5. Step 5: Solve for x
    x = 379,403,748,052,762.81/20,549,313.75
  6. Step 6: Final answer
    x = 18,463,086.05

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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.