Finding the Fourth Proportional to 128,143,368.56, 176,836,777.08 and 69,404,669.84
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Solution
The fourth proportional to 128,143,368.56, 176,836,777.08 and 69,404,669.84 is: 95,777,864.02
Step by Step Solution
- Step 1: Write the proportion equation
128,143,368.56 : 176,836,777.08 = 69,404,669.84 : x - Step 2: Convert to fraction form
128,143,368.56/176,836,777.08 = 69,404,669.84/x - Step 3: Cross multiply
128,143,368.56x = 176,836,777.08 × 69,404,669.84 - Step 4: Simplify right side
128,143,368.56x = 12,273,298,128,807,080 - Step 5: Solve for x
x = 12,273,298,128,807,080/128,143,368.56 - Step 6: Final answer
x = 95,777,864.02
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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.