Home / 285,066,261.36-393,392,520-154,686,069.36

Finding the Fourth Proportional to 285,066,261.36, 393,392,520 and 154,686,069.36

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Solution

The fourth proportional to 285,066,261.36, 393,392,520 and 154,686,069.36 is: 213,467,361.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,066,261.36 : 393,392,520 = 154,686,069.36 : x
  2. Step 2: Convert to fraction form
    285,066,261.36/393,392,520 = 154,686,069.36/x
  3. Step 3: Cross multiply
    285,066,261.36x = 393,392,520 × 154,686,069.36
  4. Step 4: Simplify right side
    285,066,261.36x = 60,852,342,634,425,192
  5. Step 5: Solve for x
    x = 60,852,342,634,425,192/285,066,261.36
  6. Step 6: Final answer
    x = 213,467,361.39

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1.5x scale

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.