Finding the Fourth Proportional to 47,577,643.56, 65,655,872.60 and 27,999,685.17
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Solution
The fourth proportional to 47,577,643.56, 65,655,872.60 and 27,999,685.17 is: 38,638,814.89
Step by Step Solution
- Step 1: Write the proportion equation
47,577,643.56 : 65,655,872.60 = 27,999,685.17 : x - Step 2: Convert to fraction form
47,577,643.56/65,655,872.60 = 27,999,685.17/x - Step 3: Cross multiply
47,577,643.56x = 65,655,872.60 × 27,999,685.17 - Step 4: Simplify right side
47,577,643.56x = 1,838,343,762,221,631 - Step 5: Solve for x
x = 1,838,343,762,221,631/47,577,643.56 - Step 6: Final answer
x = 38,638,814.89
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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.