Finding the Fourth Proportional to 19,965,743.28, 29,951,924.45 and 7,008,533.06
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Solution
The fourth proportional to 19,965,743.28, 29,951,924.45 and 7,008,533.06 is: 10,513,961.32
Step by Step Solution
- Step 1: Write the proportion equation
19,965,743.28 : 29,951,924.45 = 7,008,533.06 : x - Step 2: Convert to fraction form
19,965,743.28/29,951,924.45 = 7,008,533.06/x - Step 3: Cross multiply
19,965,743.28x = 29,951,924.45 × 7,008,533.06 - Step 4: Simplify right side
19,965,743.28x = 209,919,052,533,645.03 - Step 5: Solve for x
x = 209,919,052,533,645.03/19,965,743.28 - Step 6: Final answer
x = 10,513,961.32
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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.