Home / 187,816,198.40-281,724,297.60-129,365,561.60

Finding the Fourth Proportional to 187,816,198.40, 281,724,297.60 and 129,365,561.60

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Solution

The fourth proportional to 187,816,198.40, 281,724,297.60 and 129,365,561.60 is: 194,048,342.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,816,198.40 : 281,724,297.60 = 129,365,561.60 : x
  2. Step 2: Convert to fraction form
    187,816,198.40/281,724,297.60 = 129,365,561.60/x
  3. Step 3: Cross multiply
    187,816,198.40x = 281,724,297.60 × 129,365,561.60
  4. Step 4: Simplify right side
    187,816,198.40x = 36,445,421,975,389,536
  5. Step 5: Solve for x
    x = 36,445,421,975,389,536/187,816,198.40
  6. Step 6: Final answer
    x = 194,048,342.40

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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.