Home / 153,949,435.95-212,448,530.61-83,383,291.78

Finding the Fourth Proportional to 153,949,435.95, 212,448,530.61 and 83,383,291.78

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Solution

The fourth proportional to 153,949,435.95, 212,448,530.61 and 83,383,291.78 is: 115,068,026.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,949,435.95 : 212,448,530.61 = 83,383,291.78 : x
  2. Step 2: Convert to fraction form
    153,949,435.95/212,448,530.61 = 83,383,291.78/x
  3. Step 3: Cross multiply
    153,949,435.95x = 212,448,530.61 × 83,383,291.78
  4. Step 4: Simplify right side
    153,949,435.95x = 17,714,657,816,085,892
  5. Step 5: Solve for x
    x = 17,714,657,816,085,892/153,949,435.95
  6. Step 6: Final answer
    x = 115,068,026.76

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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.