Finding the Fourth Proportional to 10,802,715.60, 14,909,580.72 and 6,221,689.36
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Solution
The fourth proportional to 10,802,715.60, 14,909,580.72 and 6,221,689.36 is: 8,586,987.12
Step by Step Solution
- Step 1: Write the proportion equation
10,802,715.60 : 14,909,580.72 = 6,221,689.36 : x - Step 2: Convert to fraction form
10,802,715.60/14,909,580.72 = 6,221,689.36/x - Step 3: Cross multiply
10,802,715.60x = 14,909,580.72 × 6,221,689.36 - Step 4: Simplify right side
10,802,715.60x = 92,762,779,727,685.14 - Step 5: Solve for x
x = 92,762,779,727,685.14/10,802,715.60 - Step 6: Final answer
x = 8,586,987.12
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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.