Home / 111,460,318.79-167,124,245.40-42,378,179.16

Finding the Fourth Proportional to 111,460,318.79, 167,124,245.40 and 42,378,179.16

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Solution

The fourth proportional to 111,460,318.79, 167,124,245.40 and 42,378,179.16 is: 63,542,086.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,460,318.79 : 167,124,245.40 = 42,378,179.16 : x
  2. Step 2: Convert to fraction form
    111,460,318.79/167,124,245.40 = 42,378,179.16/x
  3. Step 3: Cross multiply
    111,460,318.79x = 167,124,245.40 × 42,378,179.16
  4. Step 4: Simplify right side
    111,460,318.79x = 7,082,421,212,493,494
  5. Step 5: Solve for x
    x = 7,082,421,212,493,494/111,460,318.79
  6. Step 6: Final answer
    x = 63,542,086.45

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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.