Finding the Fourth Proportional to 128,641,127.14, 177,524,620.40 and 69,903,652.53
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Solution
The fourth proportional to 128,641,127.14, 177,524,620.40 and 69,903,652.53 is: 96,466,967.11
Step by Step Solution
- Step 1: Write the proportion equation
128,641,127.14 : 177,524,620.40 = 69,903,652.53 : x - Step 2: Convert to fraction form
128,641,127.14/177,524,620.40 = 69,903,652.53/x - Step 3: Cross multiply
128,641,127.14x = 177,524,620.40 × 69,903,652.53 - Step 4: Simplify right side
128,641,127.14x = 12,409,619,380,136,510 - Step 5: Solve for x
x = 12,409,619,380,136,510/128,641,127.14 - Step 6: Final answer
x = 96,466,967.11
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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.