Home / 12,089,336.40-18,148,001.40-7,302,430.80

Finding the Fourth Proportional to 12,089,336.40, 18,148,001.40 and 7,302,430.80

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Solution

The fourth proportional to 12,089,336.40, 18,148,001.40 and 7,302,430.80 is: 10,962,100.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,089,336.40 : 18,148,001.40 = 7,302,430.80 : x
  2. Step 2: Convert to fraction form
    12,089,336.40/18,148,001.40 = 7,302,430.80/x
  3. Step 3: Cross multiply
    12,089,336.40x = 18,148,001.40 × 7,302,430.80
  4. Step 4: Simplify right side
    12,089,336.40x = 132,524,524,381,803.11
  5. Step 5: Solve for x
    x = 132,524,524,381,803.11/12,089,336.40
  6. Step 6: Final answer
    x = 10,962,100.81

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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.