Finding the Fourth Proportional to 128,672,894.72, 177,570,393.04 and 69,935,542.24
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Solution
The fourth proportional to 128,672,894.72, 177,570,393.04 and 69,935,542.24 is: 96,512,025.71
Step by Step Solution
- Step 1: Write the proportion equation
128,672,894.72 : 177,570,393.04 = 69,935,542.24 : x - Step 2: Convert to fraction form
128,672,894.72/177,570,393.04 = 69,935,542.24/x - Step 3: Cross multiply
128,672,894.72x = 177,570,393.04 × 69,935,542.24 - Step 4: Simplify right side
128,672,894.72x = 12,418,481,723,022,320 - Step 5: Solve for x
x = 12,418,481,723,022,320/128,672,894.72 - Step 6: Final answer
x = 96,512,025.71
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.