Finding the Fourth Proportional to 5,612,921.57, 7,738,813.55 and 4,683,967.70
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Solution
The fourth proportional to 5,612,921.57, 7,738,813.55 and 4,683,967.70 is: 6,458,018.74
Step by Step Solution
- Step 1: Write the proportion equation
5,612,921.57 : 7,738,813.55 = 4,683,967.70 : x - Step 2: Convert to fraction form
5,612,921.57/7,738,813.55 = 4,683,967.70/x - Step 3: Cross multiply
5,612,921.57x = 7,738,813.55 × 4,683,967.70 - Step 4: Simplify right side
5,612,921.57x = 36,248,352,677,538.19 - Step 5: Solve for x
x = 36,248,352,677,538.19/5,612,921.57 - Step 6: Final answer
x = 6,458,018.74
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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.