Home / 21,222,006.40-31,833,009.60-9,089,405.20

Finding the Fourth Proportional to 21,222,006.40, 31,833,009.60 and 9,089,405.20

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Solution

The fourth proportional to 21,222,006.40, 31,833,009.60 and 9,089,405.20 is: 13,634,107.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,222,006.40 : 31,833,009.60 = 9,089,405.20 : x
  2. Step 2: Convert to fraction form
    21,222,006.40/31,833,009.60 = 9,089,405.20/x
  3. Step 3: Cross multiply
    21,222,006.40x = 31,833,009.60 × 9,089,405.20
  4. Step 4: Simplify right side
    21,222,006.40x = 289,343,122,989,889.94
  5. Step 5: Solve for x
    x = 289,343,122,989,889.94/21,222,006.40
  6. Step 6: Final answer
    x = 13,634,107.80

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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.