Home / 127,907,968.80-176,570,640.72-81,560,520.48

Finding the Fourth Proportional to 127,907,968.80, 176,570,640.72 and 81,560,520.48

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Solution

The fourth proportional to 127,907,968.80, 176,570,640.72 and 81,560,520.48 is: 112,590,274.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,907,968.80 : 176,570,640.72 = 81,560,520.48 : x
  2. Step 2: Convert to fraction form
    127,907,968.80/176,570,640.72 = 81,560,520.48/x
  3. Step 3: Cross multiply
    127,907,968.80x = 176,570,640.72 × 81,560,520.48
  4. Step 4: Simplify right side
    127,907,968.80x = 14,401,193,358,610,282
  5. Step 5: Solve for x
    x = 14,401,193,358,610,282/127,907,968.80
  6. Step 6: Final answer
    x = 112,590,274.82

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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.