Home / 128,758,640.40-193,137,960.60-60,734,192.40

Finding the Fourth Proportional to 128,758,640.40, 193,137,960.60 and 60,734,192.40

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Solution

The fourth proportional to 128,758,640.40, 193,137,960.60 and 60,734,192.40 is: 91,101,288.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,758,640.40 : 193,137,960.60 = 60,734,192.40 : x
  2. Step 2: Convert to fraction form
    128,758,640.40/193,137,960.60 = 60,734,192.40/x
  3. Step 3: Cross multiply
    128,758,640.40x = 193,137,960.60 × 60,734,192.40
  4. Step 4: Simplify right side
    128,758,640.40x = 11,730,078,058,824,018
  5. Step 5: Solve for x
    x = 11,730,078,058,824,018/128,758,640.40
  6. Step 6: Final answer
    x = 91,101,288.60

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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.