Finding the Fourth Proportional to 5,210,988.66, 7,191,060.86 and 2,887,832.99
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Solution
The fourth proportional to 5,210,988.66, 7,191,060.86 and 2,887,832.99 is: 3,985,152.18
Step by Step Solution
- Step 1: Write the proportion equation
5,210,988.66 : 7,191,060.86 = 2,887,832.99 : x - Step 2: Convert to fraction form
5,210,988.66/7,191,060.86 = 2,887,832.99/x - Step 3: Cross multiply
5,210,988.66x = 7,191,060.86 × 2,887,832.99 - Step 4: Simplify right side
5,210,988.66x = 20,766,582,809,803.01 - Step 5: Solve for x
x = 20,766,582,809,803.01/5,210,988.66 - Step 6: Final answer
x = 3,985,152.18
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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.