Home / 71,084,138.99-106,630,341.91-19,970,143.61

Finding the Fourth Proportional to 71,084,138.99, 106,630,341.91 and 19,970,143.61

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Solution

The fourth proportional to 71,084,138.99, 106,630,341.91 and 19,970,143.61 is: 29,956,376.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,084,138.99 : 106,630,341.91 = 19,970,143.61 : x
  2. Step 2: Convert to fraction form
    71,084,138.99/106,630,341.91 = 19,970,143.61/x
  3. Step 3: Cross multiply
    71,084,138.99x = 106,630,341.91 × 19,970,143.61
  4. Step 4: Simplify right side
    71,084,138.99x = 2,129,423,240,543,024.75
  5. Step 5: Solve for x
    x = 2,129,423,240,543,024.75/71,084,138.99
  6. Step 6: Final answer
    x = 29,956,376.64

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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.