Finding the Fourth Proportional to 19,748,468.64, 27,241,915.68 and 11,487,600.96
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Solution
The fourth proportional to 19,748,468.64, 27,241,915.68 and 11,487,600.96 is: 15,846,507.52
Step by Step Solution
- Step 1: Write the proportion equation
19,748,468.64 : 27,241,915.68 = 11,487,600.96 : x - Step 2: Convert to fraction form
19,748,468.64/27,241,915.68 = 11,487,600.96/x - Step 3: Cross multiply
19,748,468.64x = 27,241,915.68 × 11,487,600.96 - Step 4: Simplify right side
19,748,468.64x = 312,944,256,717,807.06 - Step 5: Solve for x
x = 312,944,256,717,807.06/19,748,468.64 - Step 6: Final answer
x = 15,846,507.52
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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.