Home / 71,084,137.50-106,630,339.74-19,970,142.12

Finding the Fourth Proportional to 71,084,137.50, 106,630,339.74 and 19,970,142.12

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Solution

The fourth proportional to 71,084,137.50, 106,630,339.74 and 19,970,142.12 is: 29,956,374.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,084,137.50 : 106,630,339.74 = 19,970,142.12 : x
  2. Step 2: Convert to fraction form
    71,084,137.50/106,630,339.74 = 19,970,142.12/x
  3. Step 3: Cross multiply
    71,084,137.50x = 106,630,339.74 × 19,970,142.12
  4. Step 4: Simplify right side
    71,084,137.50x = 2,129,423,038,911,683.75
  5. Step 5: Solve for x
    x = 2,129,423,038,911,683.75/71,084,137.50
  6. Step 6: Final answer
    x = 29,956,374.43

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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.