Finding the Fourth Proportional to 14,029,138.08, 19,359,818.64 and 7,918,135.20
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Solution
The fourth proportional to 14,029,138.08, 19,359,818.64 and 7,918,135.20 is: 10,926,805.38
Step by Step Solution
- Step 1: Write the proportion equation
14,029,138.08 : 19,359,818.64 = 7,918,135.20 : x - Step 2: Convert to fraction form
14,029,138.08/19,359,818.64 = 7,918,135.20/x - Step 3: Cross multiply
14,029,138.08x = 19,359,818.64 × 7,918,135.20 - Step 4: Simplify right side
14,029,138.08x = 153,293,661,439,000.12 - Step 5: Solve for x
x = 153,293,661,439,000.12/14,029,138.08 - Step 6: Final answer
x = 10,926,805.38
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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.