Finding the Fourth Proportional to 14,503,178.84, 20,014,957.84 and 7,977,415.51
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Solution
The fourth proportional to 14,503,178.84, 20,014,957.84 and 7,977,415.51 is: 11,009,147.50
Step by Step Solution
- Step 1: Write the proportion equation
14,503,178.84 : 20,014,957.84 = 7,977,415.51 : x - Step 2: Convert to fraction form
14,503,178.84/20,014,957.84 = 7,977,415.51/x - Step 3: Cross multiply
14,503,178.84x = 20,014,957.84 × 7,977,415.51 - Step 4: Simplify right side
14,503,178.84x = 159,667,635,104,812.09 - Step 5: Solve for x
x = 159,667,635,104,812.09/14,503,178.84 - Step 6: Final answer
x = 11,009,147.50
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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.