Finding the Fourth Proportional to 117,267,961.55, 161,762,551.68 and 73,138,346.06
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Solution
The fourth proportional to 117,267,961.55, 161,762,551.68 and 73,138,346.06 is: 100,888,983.90
Step by Step Solution
- Step 1: Write the proportion equation
117,267,961.55 : 161,762,551.68 = 73,138,346.06 : x - Step 2: Convert to fraction form
117,267,961.55/161,762,551.68 = 73,138,346.06/x - Step 3: Cross multiply
117,267,961.55x = 161,762,551.68 × 73,138,346.06 - Step 4: Simplify right side
117,267,961.55x = 11,831,045,484,320,476 - Step 5: Solve for x
x = 11,831,045,484,320,476/117,267,961.55 - Step 6: Final answer
x = 100,888,983.90
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.