Finding the Fourth Proportional to 16,129,765.60, 22,259,009.68 and 8,787,576.08
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Solution
The fourth proportional to 16,129,765.60, 22,259,009.68 and 8,787,576.08 is: 12,126,818.57
Step by Step Solution
- Step 1: Write the proportion equation
16,129,765.60 : 22,259,009.68 = 8,787,576.08 : x - Step 2: Convert to fraction form
16,129,765.60/22,259,009.68 = 8,787,576.08/x - Step 3: Cross multiply
16,129,765.60x = 22,259,009.68 × 8,787,576.08 - Step 4: Simplify right side
16,129,765.60x = 195,602,741,028,456.47 - Step 5: Solve for x
x = 195,602,741,028,456.47/16,129,765.60 - Step 6: Final answer
x = 12,126,818.57
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1.5x scale
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.