Finding the Fourth Proportional to 10,421,154.73, 14,381,991.35 and 6,556,988.17
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Solution
The fourth proportional to 10,421,154.73, 14,381,991.35 and 6,556,988.17 is: 9,049,145.66
Step by Step Solution
- Step 1: Write the proportion equation
10,421,154.73 : 14,381,991.35 = 6,556,988.17 : x - Step 2: Convert to fraction form
10,421,154.73/14,381,991.35 = 6,556,988.17/x - Step 3: Cross multiply
10,421,154.73x = 14,381,991.35 × 6,556,988.17 - Step 4: Simplify right side
10,421,154.73x = 94,302,547,142,992.33 - Step 5: Solve for x
x = 94,302,547,142,992.33/10,421,154.73 - Step 6: Final answer
x = 9,049,145.66
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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.