Finding the Fourth Proportional to 18,449,343.68, 27,650,011.37 and 7,506,780.91
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Solution
The fourth proportional to 18,449,343.68, 27,650,011.37 and 7,506,780.91 is: 11,250,404.41
Step by Step Solution
- Step 1: Write the proportion equation
18,449,343.68 : 27,650,011.37 = 7,506,780.91 : x - Step 2: Convert to fraction form
18,449,343.68/27,650,011.37 = 7,506,780.91/x - Step 3: Cross multiply
18,449,343.68x = 27,650,011.37 × 7,506,780.91 - Step 4: Simplify right side
18,449,343.68x = 207,562,577,406,940 - Step 5: Solve for x
x = 207,562,577,406,940/18,449,343.68 - Step 6: Final answer
x = 11,250,404.41
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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.