Finding the Fourth Proportional to 128,641,131.02, 177,524,625.75 and 69,903,656.41
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Solution
The fourth proportional to 128,641,131.02, 177,524,625.75 and 69,903,656.41 is: 96,466,972.46
Step by Step Solution
- Step 1: Write the proportion equation
128,641,131.02 : 177,524,625.75 = 69,903,656.41 : x - Step 2: Convert to fraction form
128,641,131.02/177,524,625.75 = 69,903,656.41/x - Step 3: Cross multiply
128,641,131.02x = 177,524,625.75 × 69,903,656.41 - Step 4: Simplify right side
128,641,131.02x = 12,409,620,442,741,838 - Step 5: Solve for x
x = 12,409,620,442,741,838/128,641,131.02 - Step 6: Final answer
x = 96,466,972.46
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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.