Finding the Fourth Proportional to 5,779,811.61, 7,976,402.61 and 3,201,492.09
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Solution
The fourth proportional to 5,779,811.61, 7,976,402.61 and 3,201,492.09 is: 4,418,204.53
Step by Step Solution
- Step 1: Write the proportion equation
5,779,811.61 : 7,976,402.61 = 3,201,492.09 : x - Step 2: Convert to fraction form
5,779,811.61/7,976,402.61 = 3,201,492.09/x - Step 3: Cross multiply
5,779,811.61x = 7,976,402.61 × 3,201,492.09 - Step 4: Simplify right side
5,779,811.61x = 25,536,389,862,570.36 - Step 5: Solve for x
x = 25,536,389,862,570.36/5,779,811.61 - Step 6: Final answer
x = 4,418,204.53
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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.