Finding the Fourth Proportional to 7,174,988.36, 9,901,476.97 and 3,911,802.23
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Solution
The fourth proportional to 7,174,988.36, 9,901,476.97 and 3,911,802.23 is: 5,398,283.28
Step by Step Solution
- Step 1: Write the proportion equation
7,174,988.36 : 9,901,476.97 = 3,911,802.23 : x - Step 2: Convert to fraction form
7,174,988.36/9,901,476.97 = 3,911,802.23/x - Step 3: Cross multiply
7,174,988.36x = 9,901,476.97 × 3,911,802.23 - Step 4: Simplify right side
7,174,988.36x = 38,732,619,691,539.65 - Step 5: Solve for x
x = 38,732,619,691,539.65/7,174,988.36 - Step 6: Final answer
x = 5,398,283.28
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1.5x scale
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.