Finding the Fourth Proportional to 118,429,246.40, 177,643,869.60 and 91,522,212.80
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Solution
The fourth proportional to 118,429,246.40, 177,643,869.60 and 91,522,212.80 is: 137,283,319.20
Step by Step Solution
- Step 1: Write the proportion equation
118,429,246.40 : 177,643,869.60 = 91,522,212.80 : x - Step 2: Convert to fraction form
118,429,246.40/177,643,869.60 = 91,522,212.80/x - Step 3: Cross multiply
118,429,246.40x = 177,643,869.60 × 91,522,212.80 - Step 4: Simplify right side
118,429,246.40x = 16,258,360,036,146,650 - Step 5: Solve for x
x = 16,258,360,036,146,650/118,429,246.40 - Step 6: Final answer
x = 137,283,319.20
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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.