Finding the Fourth Proportional to 13,515,389.28, 18,651,088.68 and 7,320,282
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Solution
The fourth proportional to 13,515,389.28, 18,651,088.68 and 7,320,282 is: 10,101,908.71
Step by Step Solution
- Step 1: Write the proportion equation
13,515,389.28 : 18,651,088.68 = 7,320,282 : x - Step 2: Convert to fraction form
13,515,389.28/18,651,088.68 = 7,320,282/x - Step 3: Cross multiply
13,515,389.28x = 18,651,088.68 × 7,320,282 - Step 4: Simplify right side
13,515,389.28x = 136,531,228,744,607.77 - Step 5: Solve for x
x = 136,531,228,744,607.77/13,515,389.28 - Step 6: Final answer
x = 10,101,908.71
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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.