Finding the Fourth Proportional to 15,036,905.36, 20,750,374.36 and 8,161,239.80
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Solution
The fourth proportional to 15,036,905.36, 20,750,374.36 and 8,161,239.80 is: 11,262,209.68
Step by Step Solution
- Step 1: Write the proportion equation
15,036,905.36 : 20,750,374.36 = 8,161,239.80 : x - Step 2: Convert to fraction form
15,036,905.36/20,750,374.36 = 8,161,239.80/x - Step 3: Cross multiply
15,036,905.36x = 20,750,374.36 × 8,161,239.80 - Step 4: Simplify right side
15,036,905.36x = 169,348,781,091,731.53 - Step 5: Solve for x
x = 169,348,781,091,731.53/15,036,905.36 - Step 6: Final answer
x = 11,262,209.68
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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.