Finding the Fourth Proportional to 15,439,624.67, 21,309,237.47 and 8,566,321.07
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Solution
The fourth proportional to 15,439,624.67, 21,309,237.47 and 8,566,321.07 is: 11,822,940.90
Step by Step Solution
- Step 1: Write the proportion equation
15,439,624.67 : 21,309,237.47 = 8,566,321.07 : x - Step 2: Convert to fraction form
15,439,624.67/21,309,237.47 = 8,566,321.07/x - Step 3: Cross multiply
15,439,624.67x = 21,309,237.47 × 8,566,321.07 - Step 4: Simplify right side
15,439,624.67x = 182,541,769,924,894.50 - Step 5: Solve for x
x = 182,541,769,924,894.50/15,439,624.67 - Step 6: Final answer
x = 11,822,940.90
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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.