Finding the Fourth Proportional to 87,948,030.52, 121,370,515.82 and 48,255,550.80
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Solution
The fourth proportional to 87,948,030.52, 121,370,515.82 and 48,255,550.80 is: 66,593,885.70
Step by Step Solution
- Step 1: Write the proportion equation
87,948,030.52 : 121,370,515.82 = 48,255,550.80 : x - Step 2: Convert to fraction form
87,948,030.52/121,370,515.82 = 48,255,550.80/x - Step 3: Cross multiply
87,948,030.52x = 121,370,515.82 × 48,255,550.80 - Step 4: Simplify right side
87,948,030.52x = 5,856,801,091,774,213 - Step 5: Solve for x
x = 5,856,801,091,774,213/87,948,030.52 - Step 6: Final answer
x = 66,593,885.70
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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.