Home / 186,919,678.60-280,295,537.10-71,865,982.60

Finding the Fourth Proportional to 186,919,678.60, 280,295,537.10 and 71,865,982.60

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Solution

The fourth proportional to 186,919,678.60, 280,295,537.10 and 71,865,982.60 is: 107,766,685.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,919,678.60 : 280,295,537.10 = 71,865,982.60 : x
  2. Step 2: Convert to fraction form
    186,919,678.60/280,295,537.10 = 71,865,982.60/x
  3. Step 3: Cross multiply
    186,919,678.60x = 280,295,537.10 × 71,865,982.60
  4. Step 4: Simplify right side
    186,919,678.60x = 20,143,714,192,086,256
  5. Step 5: Solve for x
    x = 20,143,714,192,086,256/186,919,678.60
  6. Step 6: Final answer
    x = 107,766,685.36

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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.