Finding the Fourth Proportional to 7,163,543.08, 9,886,386.90 and 5,349,557.80
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Solution
The fourth proportional to 7,163,543.08, 9,886,386.90 and 5,349,557.80 is: 7,382,910.60
Step by Step Solution
- Step 1: Write the proportion equation
7,163,543.08 : 9,886,386.90 = 5,349,557.80 : x - Step 2: Convert to fraction form
7,163,543.08/9,886,386.90 = 5,349,557.80/x - Step 3: Cross multiply
7,163,543.08x = 9,886,386.90 × 5,349,557.80 - Step 4: Simplify right side
7,163,543.08x = 52,887,798,154,712.82 - Step 5: Solve for x
x = 52,887,798,154,712.82/7,163,543.08 - Step 6: Final answer
x = 7,382,910.60
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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.