Finding the Fourth Proportional to 19,708,455.24, 27,198,444.96 and 11,335,811.28
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Solution
The fourth proportional to 19,708,455.24, 27,198,444.96 and 11,335,811.28 is: 15,643,866.32
Step by Step Solution
- Step 1: Write the proportion equation
19,708,455.24 : 27,198,444.96 = 11,335,811.28 : x - Step 2: Convert to fraction form
19,708,455.24/27,198,444.96 = 11,335,811.28/x - Step 3: Cross multiply
19,708,455.24x = 27,198,444.96 × 11,335,811.28 - Step 4: Simplify right side
19,708,455.24x = 308,316,439,176,027.12 - Step 5: Solve for x
x = 308,316,439,176,027.12/19,708,455.24 - Step 6: Final answer
x = 15,643,866.32
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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.