Finding the Fourth Proportional to 118,711,544.79, 177,804,221.04 and 91,215,443.55
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Solution
The fourth proportional to 118,711,544.79, 177,804,221.04 and 91,215,443.55 is: 136,621,007.80
Step by Step Solution
- Step 1: Write the proportion equation
118,711,544.79 : 177,804,221.04 = 91,215,443.55 : x - Step 2: Convert to fraction form
118,711,544.79/177,804,221.04 = 91,215,443.55/x - Step 3: Cross multiply
118,711,544.79x = 177,804,221.04 × 91,215,443.55 - Step 4: Simplify right side
118,711,544.79x = 16,218,490,887,225,842 - Step 5: Solve for x
x = 16,218,490,887,225,842/118,711,544.79 - Step 6: Final answer
x = 136,621,007.80
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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.