Home / 189,530,714.12-261,554,115.84-111,215,572.52

Finding the Fourth Proportional to 189,530,714.12, 261,554,115.84 and 111,215,572.52

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Solution

The fourth proportional to 189,530,714.12, 261,554,115.84 and 111,215,572.52 is: 153,478,505.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,530,714.12 : 261,554,115.84 = 111,215,572.52 : x
  2. Step 2: Convert to fraction form
    189,530,714.12/261,554,115.84 = 111,215,572.52/x
  3. Step 3: Cross multiply
    189,530,714.12x = 261,554,115.84 × 111,215,572.52
  4. Step 4: Simplify right side
    189,530,714.12x = 29,088,890,738,108,000
  5. Step 5: Solve for x
    x = 29,088,890,738,108,000/189,530,714.12
  6. Step 6: Final answer
    x = 153,478,505.44

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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.