Home / 10,191,401.64-15,289,622.37-8,372,839.86

Finding the Fourth Proportional to 10,191,401.64, 15,289,622.37 and 8,372,839.86

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Solution

The fourth proportional to 10,191,401.64, 15,289,622.37 and 8,372,839.86 is: 12,561,330.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,191,401.64 : 15,289,622.37 = 8,372,839.86 : x
  2. Step 2: Convert to fraction form
    10,191,401.64/15,289,622.37 = 8,372,839.86/x
  3. Step 3: Cross multiply
    10,191,401.64x = 15,289,622.37 × 8,372,839.86
  4. Step 4: Simplify right side
    10,191,401.64x = 128,017,559,623,883.67
  5. Step 5: Solve for x
    x = 128,017,559,623,883.67/10,191,401.64
  6. Step 6: Final answer
    x = 12,561,330.05

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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.