Finding the Fourth Proportional to 315,558,517.12, 435,462,399.42 and 176,330,422.96
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Solution
The fourth proportional to 315,558,517.12, 435,462,399.42 and 176,330,422.96 is: 243,331,315.45
Step by Step Solution
- Step 1: Write the proportion equation
315,558,517.12 : 435,462,399.42 = 176,330,422.96 : x - Step 2: Convert to fraction form
315,558,517.12/435,462,399.42 = 176,330,422.96/x - Step 3: Cross multiply
315,558,517.12x = 435,462,399.42 × 176,330,422.96 - Step 4: Simplify right side
315,558,517.12x = 76,785,269,072,905,072 - Step 5: Solve for x
x = 76,785,269,072,905,072/315,558,517.12 - Step 6: Final answer
x = 243,331,315.45
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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.