Finding the Fourth Proportional to 128,045,456.64, 176,702,705.28 and 69,308,110.08
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Solution
The fourth proportional to 128,045,456.64, 176,702,705.28 and 69,308,110.08 is: 95,645,178.44
Step by Step Solution
- Step 1: Write the proportion equation
128,045,456.64 : 176,702,705.28 = 69,308,110.08 : x - Step 2: Convert to fraction form
128,045,456.64/176,702,705.28 = 69,308,110.08/x - Step 3: Cross multiply
128,045,456.64x = 176,702,705.28 × 69,308,110.08 - Step 4: Simplify right side
128,045,456.64x = 12,246,930,548,980,036 - Step 5: Solve for x
x = 12,246,930,548,980,036/128,045,456.64 - Step 6: Final answer
x = 95,645,178.44
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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.