Home / 421,946,169.44-632,894,740.32-126,834,916.64

Finding the Fourth Proportional to 421,946,169.44, 632,894,740.32 and 126,834,916.64

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Solution

The fourth proportional to 421,946,169.44, 632,894,740.32 and 126,834,916.64 is: 190,245,006.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,946,169.44 : 632,894,740.32 = 126,834,916.64 : x
  2. Step 2: Convert to fraction form
    421,946,169.44/632,894,740.32 = 126,834,916.64/x
  3. Step 3: Cross multiply
    421,946,169.44x = 632,894,740.32 × 126,834,916.64
  4. Step 4: Simplify right side
    421,946,169.44x = 80,273,151,630,381,648
  5. Step 5: Solve for x
    x = 80,273,151,630,381,648/421,946,169.44
  6. Step 6: Final answer
    x = 190,245,006.22

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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.