Finding the Fourth Proportional to 42,736,102.36, 64,110,538.13 and 13,590,892.17
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Solution
The fourth proportional to 42,736,102.36, 64,110,538.13 and 13,590,892.17 is: 20,388,368.68
Step by Step Solution
- Step 1: Write the proportion equation
42,736,102.36 : 64,110,538.13 = 13,590,892.17 : x - Step 2: Convert to fraction form
42,736,102.36/64,110,538.13 = 13,590,892.17/x - Step 3: Cross multiply
42,736,102.36x = 64,110,538.13 × 13,590,892.17 - Step 4: Simplify right side
42,736,102.36x = 871,319,410,617,549 - Step 5: Solve for x
x = 871,319,410,617,549/42,736,102.36 - Step 6: Final answer
x = 20,388,368.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.