Finding the Fourth Proportional to 5,012,392.80, 6,916,916.64 and 2,720,504.32
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Solution
The fourth proportional to 5,012,392.80, 6,916,916.64 and 2,720,504.32 is: 3,754,195.32
Step by Step Solution
- Step 1: Write the proportion equation
5,012,392.80 : 6,916,916.64 = 2,720,504.32 : x - Step 2: Convert to fraction form
5,012,392.80/6,916,916.64 = 2,720,504.32/x - Step 3: Cross multiply
5,012,392.80x = 6,916,916.64 × 2,720,504.32 - Step 4: Simplify right side
5,012,392.80x = 18,817,501,600,199.88 - Step 5: Solve for x
x = 18,817,501,600,199.88/5,012,392.80 - Step 6: Final answer
x = 3,754,195.32
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1.5x scale
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.