Finding the Fourth Proportional to 19,587,621.40, 29,381,432.10 and 14,170,859.80
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Solution
The fourth proportional to 19,587,621.40, 29,381,432.10 and 14,170,859.80 is: 21,256,289.70
Step by Step Solution
- Step 1: Write the proportion equation
19,587,621.40 : 29,381,432.10 = 14,170,859.80 : x - Step 2: Convert to fraction form
19,587,621.40/29,381,432.10 = 14,170,859.80/x - Step 3: Cross multiply
19,587,621.40x = 29,381,432.10 × 14,170,859.80 - Step 4: Simplify right side
19,587,621.40x = 416,360,155,012,319.62 - Step 5: Solve for x
x = 416,360,155,012,319.62/19,587,621.40 - Step 6: Final answer
x = 21,256,289.70
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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.