Home / 189,635,820.36-284,453,840.43-53,321,203.86

Finding the Fourth Proportional to 189,635,820.36, 284,453,840.43 and 53,321,203.86

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Solution

The fourth proportional to 189,635,820.36, 284,453,840.43 and 53,321,203.86 is: 79,981,836.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,635,820.36 : 284,453,840.43 = 53,321,203.86 : x
  2. Step 2: Convert to fraction form
    189,635,820.36/284,453,840.43 = 53,321,203.86/x
  3. Step 3: Cross multiply
    189,635,820.36x = 284,453,840.43 × 53,321,203.86
  4. Step 4: Simplify right side
    189,635,820.36x = 15,167,421,214,327,940
  5. Step 5: Solve for x
    x = 15,167,421,214,327,940/189,635,820.36
  6. Step 6: Final answer
    x = 79,981,836.69

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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.