Home / 147,616,246.20-221,424,369.30-78,741,492.60

Finding the Fourth Proportional to 147,616,246.20, 221,424,369.30 and 78,741,492.60

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Solution

The fourth proportional to 147,616,246.20, 221,424,369.30 and 78,741,492.60 is: 118,112,238.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,616,246.20 : 221,424,369.30 = 78,741,492.60 : x
  2. Step 2: Convert to fraction form
    147,616,246.20/221,424,369.30 = 78,741,492.60/x
  3. Step 3: Cross multiply
    147,616,246.20x = 221,424,369.30 × 78,741,492.60
  4. Step 4: Simplify right side
    147,616,246.20x = 17,435,285,336,695,616
  5. Step 5: Solve for x
    x = 17,435,285,336,695,616/147,616,246.20
  6. Step 6: Final answer
    x = 118,112,238.90

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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.