Finding the Fourth Proportional to 117,267,962.05, 161,762,552.37 and 73,138,346.56
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Solution
The fourth proportional to 117,267,962.05, 161,762,552.37 and 73,138,346.56 is: 100,888,984.59
Step by Step Solution
- Step 1: Write the proportion equation
117,267,962.05 : 161,762,552.37 = 73,138,346.56 : x - Step 2: Convert to fraction form
117,267,962.05/161,762,552.37 = 73,138,346.56/x - Step 3: Cross multiply
117,267,962.05x = 161,762,552.37 × 73,138,346.56 - Step 4: Simplify right side
117,267,962.05x = 11,831,045,615,667,210 - Step 5: Solve for x
x = 11,831,045,615,667,210/117,267,962.05 - Step 6: Final answer
x = 100,888,984.59
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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.