Finding the Fourth Proportional to 19,488,002.80, 29,190,013.80 and 16,128,770.80
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Solution
The fourth proportional to 19,488,002.80, 29,190,013.80 and 16,128,770.80 is: 24,158,403.87
Step by Step Solution
- Step 1: Write the proportion equation
19,488,002.80 : 29,190,013.80 = 16,128,770.80 : x - Step 2: Convert to fraction form
19,488,002.80/29,190,013.80 = 16,128,770.80/x - Step 3: Cross multiply
19,488,002.80x = 29,190,013.80 × 16,128,770.80 - Step 4: Simplify right side
19,488,002.80x = 470,799,042,229,037.06 - Step 5: Solve for x
x = 470,799,042,229,037.06/19,488,002.80 - Step 6: Final answer
x = 24,158,403.87
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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.