Finding the Fourth Proportional to 66,516,058.39, 91,125,477.73 and 64,029,168.75
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Solution
The fourth proportional to 66,516,058.39, 91,125,477.73 and 64,029,168.75 is: 87,718,495.84
Step by Step Solution
- Step 1: Write the proportion equation
66,516,058.39 : 91,125,477.73 = 64,029,168.75 : x - Step 2: Convert to fraction form
66,516,058.39/91,125,477.73 = 64,029,168.75/x - Step 3: Cross multiply
66,516,058.39x = 91,125,477.73 × 64,029,168.75 - Step 4: Simplify right side
66,516,058.39x = 5,834,688,590,998,537 - Step 5: Solve for x
x = 5,834,688,590,998,537/66,516,058.39 - Step 6: Final answer
x = 87,718,495.84
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.