Finding the Fourth Proportional to 3,585,011.49, 5,378,357.70 and 1,426,159.13
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Solution
The fourth proportional to 3,585,011.49, 5,378,357.70 and 1,426,159.13 is: 2,139,573.03
Step by Step Solution
- Step 1: Write the proportion equation
3,585,011.49 : 5,378,357.70 = 1,426,159.13 : x - Step 2: Convert to fraction form
3,585,011.49/5,378,357.70 = 1,426,159.13/x - Step 3: Cross multiply
3,585,011.49x = 5,378,357.70 × 1,426,159.13 - Step 4: Simplify right side
3,585,011.49x = 7,670,393,911,369.01 - Step 5: Solve for x
x = 7,670,393,911,369.01/3,585,011.49 - Step 6: Final answer
x = 2,139,573.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.