Home / 153,949,436.94-212,448,532-83,383,292.78

Finding the Fourth Proportional to 153,949,436.94, 212,448,532 and 83,383,292.78

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Solution

The fourth proportional to 153,949,436.94, 212,448,532 and 83,383,292.78 is: 115,068,028.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,949,436.94 : 212,448,532 = 83,383,292.78 : x
  2. Step 2: Convert to fraction form
    153,949,436.94/212,448,532 = 83,383,292.78/x
  3. Step 3: Cross multiply
    153,949,436.94x = 212,448,532 × 83,383,292.78
  4. Step 4: Simplify right side
    153,949,436.94x = 17,714,658,144,437,200
  5. Step 5: Solve for x
    x = 17,714,658,144,437,200/153,949,436.94
  6. Step 6: Final answer
    x = 115,068,028.16

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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.