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Finding the Fourth Proportional to 221,472,128.40, 332,208,192.60 and 221,472,128.40

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Solution

The fourth proportional to 221,472,128.40, 332,208,192.60 and 221,472,128.40 is: 332,208,192.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,472,128.40 : 332,208,192.60 = 221,472,128.40 : x
  2. Step 2: Convert to fraction form
    221,472,128.40/332,208,192.60 = 221,472,128.40/x
  3. Step 3: Cross multiply
    221,472,128.40x = 332,208,192.60 × 221,472,128.40
  4. Step 4: Simplify right side
    221,472,128.40x = 73,574,855,487,039,136
  5. Step 5: Solve for x
    x = 73,574,855,487,039,136/221,472,128.40
  6. Step 6: Final answer
    x = 332,208,192.60

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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.