Finding the Fourth Proportional to 70,948,349.37, 97,935,272.51 and 55,236,241.53
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Solution
The fourth proportional to 70,948,349.37, 97,935,272.51 and 55,236,241.53 is: 76,246,683.88
Step by Step Solution
- Step 1: Write the proportion equation
70,948,349.37 : 97,935,272.51 = 55,236,241.53 : x - Step 2: Convert to fraction form
70,948,349.37/97,935,272.51 = 55,236,241.53/x - Step 3: Cross multiply
70,948,349.37x = 97,935,272.51 × 55,236,241.53 - Step 4: Simplify right side
70,948,349.37x = 5,409,576,366,392,548 - Step 5: Solve for x
x = 5,409,576,366,392,548/70,948,349.37 - Step 6: Final answer
x = 76,246,683.88
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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.