Finding the Fourth Proportional to 7,129,269.81, 9,838,395 and 3,866,083.68
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Solution
The fourth proportional to 7,129,269.81, 9,838,395 and 3,866,083.68 is: 5,335,196.92
Step by Step Solution
- Step 1: Write the proportion equation
7,129,269.81 : 9,838,395 = 3,866,083.68 : x - Step 2: Convert to fraction form
7,129,269.81/9,838,395 = 3,866,083.68/x - Step 3: Cross multiply
7,129,269.81x = 9,838,395 × 3,866,083.68 - Step 4: Simplify right side
7,129,269.81x = 38,036,058,346,893.60 - Step 5: Solve for x
x = 38,036,058,346,893.60/7,129,269.81 - Step 6: Final answer
x = 5,335,196.92
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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.