Finding the Fourth Proportional to 288,255,028.20, 432,382,542.30 and 132,808,535.70
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Solution
The fourth proportional to 288,255,028.20, 432,382,542.30 and 132,808,535.70 is: 199,212,803.55
Step by Step Solution
- Step 1: Write the proportion equation
288,255,028.20 : 432,382,542.30 = 132,808,535.70 : x - Step 2: Convert to fraction form
288,255,028.20/432,382,542.30 = 132,808,535.70/x - Step 3: Cross multiply
288,255,028.20x = 432,382,542.30 × 132,808,535.70 - Step 4: Simplify right side
288,255,028.20x = 57,424,092,305,106,312 - Step 5: Solve for x
x = 57,424,092,305,106,312/288,255,028.20 - Step 6: Final answer
x = 199,212,803.55
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1.5x scale
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.