Home / 189,590,572.91-284,305,108.03-74,494,379.86

Finding the Fourth Proportional to 189,590,572.91, 284,305,108.03 and 74,494,379.86

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Solution

The fourth proportional to 189,590,572.91, 284,305,108.03 and 74,494,379.86 is: 111,709,840.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,590,572.91 : 284,305,108.03 = 74,494,379.86 : x
  2. Step 2: Convert to fraction form
    189,590,572.91/284,305,108.03 = 74,494,379.86/x
  3. Step 3: Cross multiply
    189,590,572.91x = 284,305,108.03 × 74,494,379.86
  4. Step 4: Simplify right side
    189,590,572.91x = 21,179,132,712,828,156
  5. Step 5: Solve for x
    x = 21,179,132,712,828,156/189,590,572.91
  6. Step 6: Final answer
    x = 111,709,840.78

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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.