Finding the Fourth Proportional to 14,171,881.28, 19,557,816.36 and 7,977,327.68
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Solution
The fourth proportional to 14,171,881.28, 19,557,816.36 and 7,977,327.68 is: 11,009,061.30
Step by Step Solution
- Step 1: Write the proportion equation
14,171,881.28 : 19,557,816.36 = 7,977,327.68 : x - Step 2: Convert to fraction form
14,171,881.28/19,557,816.36 = 7,977,327.68/x - Step 3: Cross multiply
14,171,881.28x = 19,557,816.36 × 7,977,327.68 - Step 4: Simplify right side
14,171,881.28x = 156,019,109,808,984.84 - Step 5: Solve for x
x = 156,019,109,808,984.84/14,171,881.28 - Step 6: Final answer
x = 11,009,061.30
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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.