Home / 281,190,778.40-422,034,999.60-166,031,328.80

Finding the Fourth Proportional to 281,190,778.40, 422,034,999.60 and 166,031,328.80

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Solution

The fourth proportional to 281,190,778.40, 422,034,999.60 and 166,031,328.80 is: 249,193,918.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,190,778.40 : 422,034,999.60 = 166,031,328.80 : x
  2. Step 2: Convert to fraction form
    281,190,778.40/422,034,999.60 = 166,031,328.80/x
  3. Step 3: Cross multiply
    281,190,778.40x = 422,034,999.60 × 166,031,328.80
  4. Step 4: Simplify right side
    281,190,778.40x = 70,071,031,783,695,480
  5. Step 5: Solve for x
    x = 70,071,031,783,695,480/281,190,778.40
  6. Step 6: Final answer
    x = 249,193,918.03

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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.