Finding the Fourth Proportional to 19,887,090.57, 27,443,914.11 and 11,185,259.76
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Solution
The fourth proportional to 19,887,090.57, 27,443,914.11 and 11,185,259.76 is: 15,435,506.12
Step by Step Solution
- Step 1: Write the proportion equation
19,887,090.57 : 27,443,914.11 = 11,185,259.76 : x - Step 2: Convert to fraction form
19,887,090.57/27,443,914.11 = 11,185,259.76/x - Step 3: Cross multiply
19,887,090.57x = 27,443,914.11 × 11,185,259.76 - Step 4: Simplify right side
19,887,090.57x = 306,967,308,151,479.19 - Step 5: Solve for x
x = 306,967,308,151,479.19/19,887,090.57 - Step 6: Final answer
x = 15,435,506.12
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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.