Finding the Fourth Proportional to 12,805,663.12, 19,199,962.17 and 7,051,106.61
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Solution
The fourth proportional to 12,805,663.12, 19,199,962.17 and 7,051,106.61 is: 10,571,961.71
Step by Step Solution
- Step 1: Write the proportion equation
12,805,663.12 : 19,199,962.17 = 7,051,106.61 : x - Step 2: Convert to fraction form
12,805,663.12/19,199,962.17 = 7,051,106.61/x - Step 3: Cross multiply
12,805,663.12x = 19,199,962.17 × 7,051,106.61 - Step 4: Simplify right side
12,805,663.12x = 135,380,980,168,636.97 - Step 5: Solve for x
x = 135,380,980,168,636.97/12,805,663.12 - Step 6: Final answer
x = 10,571,961.71
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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.