Finding the Fourth Proportional to 14,163,618.80, 21,217,434.60 and 7,762,415.60
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Solution
The fourth proportional to 14,163,618.80, 21,217,434.60 and 7,762,415.60 is: 11,628,281.42
Step by Step Solution
- Step 1: Write the proportion equation
14,163,618.80 : 21,217,434.60 = 7,762,415.60 : x - Step 2: Convert to fraction form
14,163,618.80/21,217,434.60 = 7,762,415.60/x - Step 3: Cross multiply
14,163,618.80x = 21,217,434.60 × 7,762,415.60 - Step 4: Simplify right side
14,163,618.80x = 164,698,545,331,019.75 - Step 5: Solve for x
x = 164,698,545,331,019.75/14,163,618.80 - Step 6: Final answer
x = 11,628,281.42
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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.