Finding the Fourth Proportional to 118,429,235.40, 177,643,853.10 and 91,522,201.80
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Solution
The fourth proportional to 118,429,235.40, 177,643,853.10 and 91,522,201.80 is: 137,283,302.70
Step by Step Solution
- Step 1: Write the proportion equation
118,429,235.40 : 177,643,853.10 = 91,522,201.80 : x - Step 2: Convert to fraction form
118,429,235.40/177,643,853.10 = 91,522,201.80/x - Step 3: Cross multiply
118,429,235.40x = 177,643,853.10 × 91,522,201.80 - Step 4: Simplify right side
118,429,235.40x = 16,258,356,571,947,754 - Step 5: Solve for x
x = 16,258,356,571,947,754/118,429,235.40 - Step 6: Final answer
x = 137,283,302.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.