Finding the Fourth Proportional to 11,285,274.60, 15,577,219.62 and 7,210,909.80
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Solution
The fourth proportional to 11,285,274.60, 15,577,219.62 and 7,210,909.80 is: 9,953,317.89
Step by Step Solution
- Step 1: Write the proportion equation
11,285,274.60 : 15,577,219.62 = 7,210,909.80 : x - Step 2: Convert to fraction form
11,285,274.60/15,577,219.62 = 7,210,909.80/x - Step 3: Cross multiply
11,285,274.60x = 15,577,219.62 × 7,210,909.80 - Step 4: Simplify right side
11,285,274.60x = 112,325,925,614,610.27 - Step 5: Solve for x
x = 112,325,925,614,610.27/11,285,274.60 - Step 6: Final answer
x = 9,953,317.89
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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.