Finding the Fourth Proportional to 149,960,036.41, 206,894,729.72 and 87,222,816.74
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Solution
The fourth proportional to 149,960,036.41, 206,894,729.72 and 87,222,816.74 is: 120,338,334.99
Step by Step Solution
- Step 1: Write the proportion equation
149,960,036.41 : 206,894,729.72 = 87,222,816.74 : x - Step 2: Convert to fraction form
149,960,036.41/206,894,729.72 = 87,222,816.74/x - Step 3: Cross multiply
149,960,036.41x = 206,894,729.72 × 87,222,816.74 - Step 4: Simplify right side
149,960,036.41x = 18,045,941,095,574,688 - Step 5: Solve for x
x = 18,045,941,095,574,688/149,960,036.41 - Step 6: Final answer
x = 120,338,334.99
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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.