Home / 211,281,884.11-291,563,374.19-121,970,814.11

Finding the Fourth Proportional to 211,281,884.11, 291,563,374.19 and 121,970,814.11

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Solution

The fourth proportional to 211,281,884.11, 291,563,374.19 and 121,970,814.11 is: 168,316,475.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,281,884.11 : 291,563,374.19 = 121,970,814.11 : x
  2. Step 2: Convert to fraction form
    211,281,884.11/291,563,374.19 = 121,970,814.11/x
  3. Step 3: Cross multiply
    211,281,884.11x = 291,563,374.19 × 121,970,814.11
  4. Step 4: Simplify right side
    211,281,884.11x = 35,562,222,114,612,860
  5. Step 5: Solve for x
    x = 35,562,222,114,612,860/211,281,884.11
  6. Step 6: Final answer
    x = 168,316,475.71

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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.