Home / 221,786,133.36-306,076,329.74-127,714,243.20

Finding the Fourth Proportional to 221,786,133.36, 306,076,329.74 and 127,714,243.20

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Solution

The fourth proportional to 221,786,133.36, 306,076,329.74 and 127,714,243.20 is: 176,252,258.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,786,133.36 : 306,076,329.74 = 127,714,243.20 : x
  2. Step 2: Convert to fraction form
    221,786,133.36/306,076,329.74 = 127,714,243.20/x
  3. Step 3: Cross multiply
    221,786,133.36x = 306,076,329.74 × 127,714,243.20
  4. Step 4: Simplify right side
    221,786,133.36x = 39,090,306,814,177,752
  5. Step 5: Solve for x
    x = 39,090,306,814,177,752/221,786,133.36
  6. Step 6: Final answer
    x = 176,252,258.07

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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.