Finding the Fourth Proportional to 12,354,036.84, 18,504,985.68 and 9,911,968.52
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Solution
The fourth proportional to 12,354,036.84, 18,504,985.68 and 9,911,968.52 is: 14,847,036.46
Step by Step Solution
- Step 1: Write the proportion equation
12,354,036.84 : 18,504,985.68 = 9,911,968.52 : x - Step 2: Convert to fraction form
12,354,036.84/18,504,985.68 = 9,911,968.52/x - Step 3: Cross multiply
12,354,036.84x = 18,504,985.68 × 9,911,968.52 - Step 4: Simplify right side
12,354,036.84x = 183,420,835,430,685.88 - Step 5: Solve for x
x = 183,420,835,430,685.88/12,354,036.84 - Step 6: Final answer
x = 14,847,036.46
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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.