Finding the Fourth Proportional to 161,344,347.20, 222,672,444.36 and 98,657,186.96
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Solution
The fourth proportional to 161,344,347.20, 222,672,444.36 and 98,657,186.96 is: 136,157,462.94
Step by Step Solution
- Step 1: Write the proportion equation
161,344,347.20 : 222,672,444.36 = 98,657,186.96 : x - Step 2: Convert to fraction form
161,344,347.20/222,672,444.36 = 98,657,186.96/x - Step 3: Cross multiply
161,344,347.20x = 222,672,444.36 × 98,657,186.96 - Step 4: Simplify right side
161,344,347.20x = 21,968,236,974,064,716 - Step 5: Solve for x
x = 21,968,236,974,064,716/161,344,347.20 - Step 6: Final answer
x = 136,157,462.94
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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.