Home / 190,512,007.20-285,768,010.80-189,168,314.40

Finding the Fourth Proportional to 190,512,007.20, 285,768,010.80 and 189,168,314.40

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Solution

The fourth proportional to 190,512,007.20, 285,768,010.80 and 189,168,314.40 is: 283,752,471.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,512,007.20 : 285,768,010.80 = 189,168,314.40 : x
  2. Step 2: Convert to fraction form
    190,512,007.20/285,768,010.80 = 189,168,314.40/x
  3. Step 3: Cross multiply
    190,512,007.20x = 285,768,010.80 × 189,168,314.40
  4. Step 4: Simplify right side
    190,512,007.20x = 54,058,252,912,477,000
  5. Step 5: Solve for x
    x = 54,058,252,912,477,000/190,512,007.20
  6. Step 6: Final answer
    x = 283,752,471.60

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1.5x scale

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.