Finding the Fourth Proportional to 129,913,931.36, 194,888,807.76 and 43,659,020.48
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Solution
The fourth proportional to 129,913,931.36, 194,888,807.76 and 43,659,020.48 is: 65,494,549.82
Step by Step Solution
- Step 1: Write the proportion equation
129,913,931.36 : 194,888,807.76 = 43,659,020.48 : x - Step 2: Convert to fraction form
129,913,931.36/194,888,807.76 = 43,659,020.48/x - Step 3: Cross multiply
129,913,931.36x = 194,888,807.76 × 43,659,020.48 - Step 4: Simplify right side
129,913,931.36x = 8,508,654,449,316,622 - Step 5: Solve for x
x = 8,508,654,449,316,622/129,913,931.36 - Step 6: Final answer
x = 65,494,549.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.