Finding the Fourth Proportional to 5,127,417.18, 7,075,818.21 and 2,835,528.66
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Solution
The fourth proportional to 5,127,417.18, 7,075,818.21 and 2,835,528.66 is: 3,913,019.87
Step by Step Solution
- Step 1: Write the proportion equation
5,127,417.18 : 7,075,818.21 = 2,835,528.66 : x - Step 2: Convert to fraction form
5,127,417.18/7,075,818.21 = 2,835,528.66/x - Step 3: Cross multiply
5,127,417.18x = 7,075,818.21 × 2,835,528.66 - Step 4: Simplify right side
5,127,417.18x = 20,063,685,327,404.90 - Step 5: Solve for x
x = 20,063,685,327,404.90/5,127,417.18 - Step 6: Final answer
x = 3,913,019.87
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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.