Home / 391,522,537.68-540,315,307.94-224,291,119.58

Finding the Fourth Proportional to 391,522,537.68, 540,315,307.94 and 224,291,119.58

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Solution

The fourth proportional to 391,522,537.68, 540,315,307.94 and 224,291,119.58 is: 309,529,883.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,522,537.68 : 540,315,307.94 = 224,291,119.58 : x
  2. Step 2: Convert to fraction form
    391,522,537.68/540,315,307.94 = 224,291,119.58/x
  3. Step 3: Cross multiply
    391,522,537.68x = 540,315,307.94 × 224,291,119.58
  4. Step 4: Simplify right side
    391,522,537.68x = 121,187,925,340,252,016
  5. Step 5: Solve for x
    x = 121,187,925,340,252,016/391,522,537.68
  6. Step 6: Final answer
    x = 309,529,883.15

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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.