Home / 392,912,190.40-589,370,326.80-101,758,921.60

Finding the Fourth Proportional to 392,912,190.40, 589,370,326.80 and 101,758,921.60

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Solution

The fourth proportional to 392,912,190.40, 589,370,326.80 and 101,758,921.60 is: 152,638,911.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,912,190.40 : 589,370,326.80 = 101,758,921.60 : x
  2. Step 2: Convert to fraction form
    392,912,190.40/589,370,326.80 = 101,758,921.60/x
  3. Step 3: Cross multiply
    392,912,190.40x = 589,370,326.80 × 101,758,921.60
  4. Step 4: Simplify right side
    392,912,190.40x = 59,973,688,878,207,568
  5. Step 5: Solve for x
    x = 59,973,688,878,207,568/392,912,190.40
  6. Step 6: Final answer
    x = 152,638,911.04

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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.