Finding the Fourth Proportional to 1,121,010,276.30, 1,681,515,414.45 and 753,678,257.10
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Solution
The fourth proportional to 1,121,010,276.30, 1,681,515,414.45 and 753,678,257.10 is: 1,130,517,385.65
Step by Step Solution
- Step 1: Write the proportion equation
1,121,010,276.30 : 1,681,515,414.45 = 753,678,257.10 : x - Step 2: Convert to fraction form
1,121,010,276.30/1,681,515,414.45 = 753,678,257.10/x - Step 3: Cross multiply
1,121,010,276.30x = 1,681,515,414.45 × 753,678,257.10 - Step 4: Simplify right side
1,121,010,276.30x = 1,267,321,606,849,460,224 - Step 5: Solve for x
x = 1,267,321,606,849,460,224/1,121,010,276.30 - Step 6: Final answer
x = 1,130,517,385.65
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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.