Finding the Fourth Proportional to 14,395,921.68, 19,866,376.36 and 7,869,579.92
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Solution
The fourth proportional to 14,395,921.68, 19,866,376.36 and 7,869,579.92 is: 10,860,022.72
Step by Step Solution
- Step 1: Write the proportion equation
14,395,921.68 : 19,866,376.36 = 7,869,579.92 : x - Step 2: Convert to fraction form
14,395,921.68/19,866,376.36 = 7,869,579.92/x - Step 3: Cross multiply
14,395,921.68x = 19,866,376.36 × 7,869,579.92 - Step 4: Simplify right side
14,395,921.68x = 156,340,036,485,818.69 - Step 5: Solve for x
x = 156,340,036,485,818.69/14,395,921.68 - Step 6: Final answer
x = 10,860,022.72
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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.