Finding the Fourth Proportional to 7,815,405.74, 10,781,292.09 and 5,332,764.34
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Solution
The fourth proportional to 7,815,405.74, 10,781,292.09 and 5,332,764.34 is: 7,356,507.38
Step by Step Solution
- Step 1: Write the proportion equation
7,815,405.74 : 10,781,292.09 = 5,332,764.34 : x - Step 2: Convert to fraction form
7,815,405.74/10,781,292.09 = 5,332,764.34/x - Step 3: Cross multiply
7,815,405.74x = 10,781,292.09 × 5,332,764.34 - Step 4: Simplify right side
7,815,405.74x = 57,494,089,969,722.84 - Step 5: Solve for x
x = 57,494,089,969,722.84/7,815,405.74 - Step 6: Final answer
x = 7,356,507.38
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.