Home / 187,936,231.60-281,837,992.20-66,771,636.40

Finding the Fourth Proportional to 187,936,231.60, 281,837,992.20 and 66,771,636.40

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Solution

The fourth proportional to 187,936,231.60, 281,837,992.20 and 66,771,636.40 is: 100,133,879.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,936,231.60 : 281,837,992.20 = 66,771,636.40 : x
  2. Step 2: Convert to fraction form
    187,936,231.60/281,837,992.20 = 66,771,636.40/x
  3. Step 3: Cross multiply
    187,936,231.60x = 281,837,992.20 × 66,771,636.40
  4. Step 4: Simplify right side
    187,936,231.60x = 18,818,783,938,884,436
  5. Step 5: Solve for x
    x = 18,818,783,938,884,436/187,936,231.60
  6. Step 6: Final answer
    x = 100,133,879.34

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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.