Home / 391,520,317.32-540,145,119.42-224,167,138.28

Finding the Fourth Proportional to 391,520,317.32, 540,145,119.42 and 224,167,138.28

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Solution

The fourth proportional to 391,520,317.32, 540,145,119.42 and 224,167,138.28 is: 309,263,096.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,520,317.32 : 540,145,119.42 = 224,167,138.28 : x
  2. Step 2: Convert to fraction form
    391,520,317.32/540,145,119.42 = 224,167,138.28/x
  3. Step 3: Cross multiply
    391,520,317.32x = 540,145,119.42 × 224,167,138.28
  4. Step 4: Simplify right side
    391,520,317.32x = 121,082,785,676,290,240
  5. Step 5: Solve for x
    x = 121,082,785,676,290,240/391,520,317.32
  6. Step 6: Final answer
    x = 309,263,096.50

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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.