Finding the Fourth Proportional to 11,230,555.28, 15,498,875.05 and 6,333,990.78
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Solution
The fourth proportional to 11,230,555.28, 15,498,875.05 and 6,333,990.78 is: 8,741,307.02
Step by Step Solution
- Step 1: Write the proportion equation
11,230,555.28 : 15,498,875.05 = 6,333,990.78 : x - Step 2: Convert to fraction form
11,230,555.28/15,498,875.05 = 6,333,990.78/x - Step 3: Cross multiply
11,230,555.28x = 15,498,875.05 × 6,333,990.78 - Step 4: Simplify right side
11,230,555.28x = 98,169,731,667,072.05 - Step 5: Solve for x
x = 98,169,731,667,072.05/11,230,555.28 - Step 6: Final answer
x = 8,741,307.02
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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.