Finding the Fourth Proportional to 7,778,574.88, 10,734,435.28 and 4,293,915.68
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Solution
The fourth proportional to 7,778,574.88, 10,734,435.28 and 4,293,915.68 is: 5,925,604.71
Step by Step Solution
- Step 1: Write the proportion equation
7,778,574.88 : 10,734,435.28 = 4,293,915.68 : x - Step 2: Convert to fraction form
7,778,574.88/10,734,435.28 = 4,293,915.68/x - Step 3: Cross multiply
7,778,574.88x = 10,734,435.28 × 4,293,915.68 - Step 4: Simplify right side
7,778,574.88x = 46,092,759,964,737.19 - Step 5: Solve for x
x = 46,092,759,964,737.19/7,778,574.88 - Step 6: Final answer
x = 5,925,604.71
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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.