Home / 127,117,510.80-190,701,149.40-54,334,150.80

Finding the Fourth Proportional to 127,117,510.80, 190,701,149.40 and 54,334,150.80

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Solution

The fourth proportional to 127,117,510.80, 190,701,149.40 and 54,334,150.80 is: 81,511,862.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,117,510.80 : 190,701,149.40 = 54,334,150.80 : x
  2. Step 2: Convert to fraction form
    127,117,510.80/190,701,149.40 = 54,334,150.80/x
  3. Step 3: Cross multiply
    127,117,510.80x = 190,701,149.40 × 54,334,150.80
  4. Step 4: Simplify right side
    127,117,510.80x = 10,361,585,009,232,930
  5. Step 5: Solve for x
    x = 10,361,585,009,232,930/127,117,510.80
  6. Step 6: Final answer
    x = 81,511,862.09

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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.