Finding the Fourth Proportional to 5,355,122.94, 7,389,867.84 and 2,907,681.12
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Solution
The fourth proportional to 5,355,122.94, 7,389,867.84 and 2,907,681.12 is: 4,012,490.36
Step by Step Solution
- Step 1: Write the proportion equation
5,355,122.94 : 7,389,867.84 = 2,907,681.12 : x - Step 2: Convert to fraction form
5,355,122.94/7,389,867.84 = 2,907,681.12/x - Step 3: Cross multiply
5,355,122.94x = 7,389,867.84 × 2,907,681.12 - Step 4: Simplify right side
5,355,122.94x = 21,487,379,197,663.18 - Step 5: Solve for x
x = 21,487,379,197,663.18/5,355,122.94 - Step 6: Final answer
x = 4,012,490.36
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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.