Finding the Fourth Proportional to 19,086,985.80, 28,630,478.70 and 14,782,313.70
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Solution
The fourth proportional to 19,086,985.80, 28,630,478.70 and 14,782,313.70 is: 22,173,470.55
Step by Step Solution
- Step 1: Write the proportion equation
19,086,985.80 : 28,630,478.70 = 14,782,313.70 : x - Step 2: Convert to fraction form
19,086,985.80/28,630,478.70 = 14,782,313.70/x - Step 3: Cross multiply
19,086,985.80x = 28,630,478.70 × 14,782,313.70 - Step 4: Simplify right side
19,086,985.80x = 423,224,717,524,568.19 - Step 5: Solve for x
x = 423,224,717,524,568.19/19,086,985.80 - Step 6: Final answer
x = 22,173,470.55
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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.