Finding the Fourth Proportional to 12,138,814.10, 18,202,972.35 and 6,071,201.30
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Solution
The fourth proportional to 12,138,814.10, 18,202,972.35 and 6,071,201.30 is: 9,104,176.77
Step by Step Solution
- Step 1: Write the proportion equation
12,138,814.10 : 18,202,972.35 = 6,071,201.30 : x - Step 2: Convert to fraction form
12,138,814.10/18,202,972.35 = 6,071,201.30/x - Step 3: Cross multiply
12,138,814.10x = 18,202,972.35 × 6,071,201.30 - Step 4: Simplify right side
12,138,814.10x = 110,513,909,395,184.06 - Step 5: Solve for x
x = 110,513,909,395,184.06/12,138,814.10 - Step 6: Final answer
x = 9,104,176.77
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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.