Finding the Fourth Proportional to 117,953,140.12, 162,769,496.70 and 65,746,475.80
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Solution
The fourth proportional to 117,953,140.12, 162,769,496.70 and 65,746,475.80 is: 90,726,883.28
Step by Step Solution
- Step 1: Write the proportion equation
117,953,140.12 : 162,769,496.70 = 65,746,475.80 : x - Step 2: Convert to fraction form
117,953,140.12/162,769,496.70 = 65,746,475.80/x - Step 3: Cross multiply
117,953,140.12x = 162,769,496.70 × 65,746,475.80 - Step 4: Simplify right side
117,953,140.12x = 10,701,520,775,764,728 - Step 5: Solve for x
x = 10,701,520,775,764,728/117,953,140.12 - Step 6: Final answer
x = 90,726,883.28
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.