Finding the Fourth Proportional to 5,707,328.32, 7,875,904.08 and 3,128,952.52
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Solution
The fourth proportional to 5,707,328.32, 7,875,904.08 and 3,128,952.52 is: 4,317,839.90
Step by Step Solution
- Step 1: Write the proportion equation
5,707,328.32 : 7,875,904.08 = 3,128,952.52 : x - Step 2: Convert to fraction form
5,707,328.32/7,875,904.08 = 3,128,952.52/x - Step 3: Cross multiply
5,707,328.32x = 7,875,904.08 × 3,128,952.52 - Step 4: Simplify right side
5,707,328.32x = 24,643,329,918,394.28 - Step 5: Solve for x
x = 24,643,329,918,394.28/5,707,328.32 - Step 6: Final answer
x = 4,317,839.90
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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.