Finding the Fourth Proportional to 2,086,563,511.20, 3,129,845,266.80 and 1,119,104,695.20
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Solution
The fourth proportional to 2,086,563,511.20, 3,129,845,266.80 and 1,119,104,695.20 is: 1,678,657,042.80
Step by Step Solution
- Step 1: Write the proportion equation
2,086,563,511.20 : 3,129,845,266.80 = 1,119,104,695.20 : x - Step 2: Convert to fraction form
2,086,563,511.20/3,129,845,266.80 = 1,119,104,695.20/x - Step 3: Cross multiply
2,086,563,511.20x = 3,129,845,266.80 × 1,119,104,695.20 - Step 4: Simplify right side
2,086,563,511.20x = 3,502,624,533,325,377,024 - Step 5: Solve for x
x = 3,502,624,533,325,377,024/2,086,563,511.20 - Step 6: Final answer
x = 1,678,657,042.80
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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.