Finding the Fourth Proportional to 10,011,098.81, 13,815,316.36 and 5,427,420.19
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Solution
The fourth proportional to 10,011,098.81, 13,815,316.36 and 5,427,420.19 is: 7,489,839.86
Step by Step Solution
- Step 1: Write the proportion equation
10,011,098.81 : 13,815,316.36 = 5,427,420.19 : x - Step 2: Convert to fraction form
10,011,098.81/13,815,316.36 = 5,427,420.19/x - Step 3: Cross multiply
10,011,098.81x = 13,815,316.36 × 5,427,420.19 - Step 4: Simplify right side
10,011,098.81x = 74,981,526,915,747.30 - Step 5: Solve for x
x = 74,981,526,915,747.30/10,011,098.81 - Step 6: Final answer
x = 7,489,839.86
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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.