Finding the Fourth Proportional to 71,828,535.42, 107,742,804.05 and 17,241,120.82
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Solution
The fourth proportional to 71,828,535.42, 107,742,804.05 and 17,241,120.82 is: 25,861,681.45
Step by Step Solution
- Step 1: Write the proportion equation
71,828,535.42 : 107,742,804.05 = 17,241,120.82 : x - Step 2: Convert to fraction form
71,828,535.42/107,742,804.05 = 17,241,120.82/x - Step 3: Cross multiply
71,828,535.42x = 107,742,804.05 × 17,241,120.82 - Step 4: Simplify right side
71,828,535.42x = 1,857,606,701,885,381 - Step 5: Solve for x
x = 1,857,606,701,885,381/71,828,535.42 - Step 6: Final answer
x = 25,861,681.45
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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.