Finding the Fourth Proportional to 13,251,781.26, 19,878,116.58 and 3,666,357.09
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Solution
The fourth proportional to 13,251,781.26, 19,878,116.58 and 3,666,357.09 is: 5,499,658.67
Step by Step Solution
- Step 1: Write the proportion equation
13,251,781.26 : 19,878,116.58 = 3,666,357.09 : x - Step 2: Convert to fraction form
13,251,781.26/19,878,116.58 = 3,666,357.09/x - Step 3: Cross multiply
13,251,781.26x = 19,878,116.58 × 3,666,357.09 - Step 4: Simplify right side
13,251,781.26x = 72,880,273,658,929.55 - Step 5: Solve for x
x = 72,880,273,658,929.55/13,251,781.26 - Step 6: Final answer
x = 5,499,658.67
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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.