Home / 239,698,640.36-330,690,002.24-139,209,970.72

Finding the Fourth Proportional to 239,698,640.36, 330,690,002.24 and 139,209,970.72

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Solution

The fourth proportional to 239,698,640.36, 330,690,002.24 and 139,209,970.72 is: 192,055,096.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,698,640.36 : 330,690,002.24 = 139,209,970.72 : x
  2. Step 2: Convert to fraction form
    239,698,640.36/330,690,002.24 = 139,209,970.72/x
  3. Step 3: Cross multiply
    239,698,640.36x = 330,690,002.24 × 139,209,970.72
  4. Step 4: Simplify right side
    239,698,640.36x = 46,035,345,529,227,136
  5. Step 5: Solve for x
    x = 46,035,345,529,227,136/239,698,640.36
  6. Step 6: Final answer
    x = 192,055,096.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.