Finding the Fourth Proportional to 117,267,964.05, 161,762,555.13 and 73,138,348.56
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Solution
The fourth proportional to 117,267,964.05, 161,762,555.13 and 73,138,348.56 is: 100,888,987.35
Step by Step Solution
- Step 1: Write the proportion equation
117,267,964.05 : 161,762,555.13 = 73,138,348.56 : x - Step 2: Convert to fraction form
117,267,964.05/161,762,555.13 = 73,138,348.56/x - Step 3: Cross multiply
117,267,964.05x = 161,762,555.13 × 73,138,348.56 - Step 4: Simplify right side
117,267,964.05x = 11,831,046,141,054,156 - Step 5: Solve for x
x = 11,831,046,141,054,156/117,267,964.05 - Step 6: Final answer
x = 100,888,987.35
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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.