Home / 262,560,172.34-393,908,353.49-139,637,409.77

Finding the Fourth Proportional to 262,560,172.34, 393,908,353.49 and 139,637,409.77

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Solution

The fourth proportional to 262,560,172.34, 393,908,353.49 and 139,637,409.77 is: 209,492,329.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,560,172.34 : 393,908,353.49 = 139,637,409.77 : x
  2. Step 2: Convert to fraction form
    262,560,172.34/393,908,353.49 = 139,637,409.77/x
  3. Step 3: Cross multiply
    262,560,172.34x = 393,908,353.49 × 139,637,409.77
  4. Step 4: Simplify right side
    262,560,172.34x = 55,004,342,168,109,144
  5. Step 5: Solve for x
    x = 55,004,342,168,109,144/262,560,172.34
  6. Step 6: Final answer
    x = 209,492,329.62

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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.