Finding the Fourth Proportional to 212,521,963.32, 293,180,106.24 and 124,361,880.12
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Solution
The fourth proportional to 212,521,963.32, 293,180,106.24 and 124,361,880.12 is: 171,560,758.50
Step by Step Solution
- Step 1: Write the proportion equation
212,521,963.32 : 293,180,106.24 = 124,361,880.12 : x - Step 2: Convert to fraction form
212,521,963.32/293,180,106.24 = 124,361,880.12/x - Step 3: Cross multiply
212,521,963.32x = 293,180,106.24 × 124,361,880.12 - Step 4: Simplify right side
212,521,963.32x = 36,460,429,225,787,744 - Step 5: Solve for x
x = 36,460,429,225,787,744/212,521,963.32 - Step 6: Final answer
x = 171,560,758.50
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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.