Finding the Fourth Proportional to 7,144,371.81, 9,859,241.70 and 3,881,188.71
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Solution
The fourth proportional to 7,144,371.81, 9,859,241.70 and 3,881,188.71 is: 5,356,045.09
Step by Step Solution
- Step 1: Write the proportion equation
7,144,371.81 : 9,859,241.70 = 3,881,188.71 : x - Step 2: Convert to fraction form
7,144,371.81/9,859,241.70 = 3,881,188.71/x - Step 3: Cross multiply
7,144,371.81x = 9,859,241.70 × 3,881,188.71 - Step 4: Simplify right side
7,144,371.81x = 38,265,577,575,201.20 - Step 5: Solve for x
x = 38,265,577,575,201.20/7,144,371.81 - Step 6: Final answer
x = 5,356,045.09
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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.