Finding the Fourth Proportional to 11,828,615.70, 17,742,923.55 and 5,451,323.70
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Solution
The fourth proportional to 11,828,615.70, 17,742,923.55 and 5,451,323.70 is: 8,176,985.55
Step by Step Solution
- Step 1: Write the proportion equation
11,828,615.70 : 17,742,923.55 = 5,451,323.70 : x - Step 2: Convert to fraction form
11,828,615.70/17,742,923.55 = 5,451,323.70/x - Step 3: Cross multiply
11,828,615.70x = 17,742,923.55 × 5,451,323.70 - Step 4: Simplify right side
11,828,615.70x = 96,722,419,655,403.14 - Step 5: Solve for x
x = 96,722,419,655,403.14/11,828,615.70 - Step 6: Final answer
x = 8,176,985.55
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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.