Home / 391,520,313.32-540,145,113.90-224,167,134.29

Finding the Fourth Proportional to 391,520,313.32, 540,145,113.90 and 224,167,134.29

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Solution

The fourth proportional to 391,520,313.32, 540,145,113.90 and 224,167,134.29 is: 309,263,090.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,520,313.32 : 540,145,113.90 = 224,167,134.29 : x
  2. Step 2: Convert to fraction form
    391,520,313.32/540,145,113.90 = 224,167,134.29/x
  3. Step 3: Cross multiply
    391,520,313.32x = 540,145,113.90 × 224,167,134.29
  4. Step 4: Simplify right side
    391,520,313.32x = 121,082,782,280,167,296
  5. Step 5: Solve for x
    x = 121,082,782,280,167,296/391,520,313.32
  6. Step 6: Final answer
    x = 309,263,090.99

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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.