Finding the Fourth Proportional to 19,659,090.49, 27,129,670.81 and 10,957,814.87
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Solution
The fourth proportional to 19,659,090.49, 27,129,670.81 and 10,957,814.87 is: 15,121,854.71
Step by Step Solution
- Step 1: Write the proportion equation
19,659,090.49 : 27,129,670.81 = 10,957,814.87 : x - Step 2: Convert to fraction form
19,659,090.49/27,129,670.81 = 10,957,814.87/x - Step 3: Cross multiply
19,659,090.49x = 27,129,670.81 × 10,957,814.87 - Step 4: Simplify right side
19,659,090.49x = 297,281,910,056,980.06 - Step 5: Solve for x
x = 297,281,910,056,980.06/19,659,090.49 - Step 6: Final answer
x = 15,121,854.71
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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.