Finding the Fourth Proportional to 227,090,412.80, 340,635,619.20 and 97,759,980.80
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Solution
The fourth proportional to 227,090,412.80, 340,635,619.20 and 97,759,980.80 is: 146,639,971.20
Step by Step Solution
- Step 1: Write the proportion equation
227,090,412.80 : 340,635,619.20 = 97,759,980.80 : x - Step 2: Convert to fraction form
227,090,412.80/340,635,619.20 = 97,759,980.80/x - Step 3: Cross multiply
227,090,412.80x = 340,635,619.20 × 97,759,980.80 - Step 4: Simplify right side
227,090,412.80x = 33,300,531,592,788,108 - Step 5: Solve for x
x = 33,300,531,592,788,108/227,090,412.80 - Step 6: Final answer
x = 146,639,971.20
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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.