Home / 28,296,744.40-42,445,116.60-9,128,126.80

Finding the Fourth Proportional to 28,296,744.40, 42,445,116.60 and 9,128,126.80

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Solution

The fourth proportional to 28,296,744.40, 42,445,116.60 and 9,128,126.80 is: 13,692,190.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,296,744.40 : 42,445,116.60 = 9,128,126.80 : x
  2. Step 2: Convert to fraction form
    28,296,744.40/42,445,116.60 = 9,128,126.80/x
  3. Step 3: Cross multiply
    28,296,744.40x = 42,445,116.60 × 9,128,126.80
  4. Step 4: Simplify right side
    28,296,744.40x = 387,444,406,365,584.94
  5. Step 5: Solve for x
    x = 387,444,406,365,584.94/28,296,744.40
  6. Step 6: Final answer
    x = 13,692,190.20

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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.