Finding the Fourth Proportional to 1,254,745,907.44, 1,731,539,796.28 and 690,218,664.12
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Solution
The fourth proportional to 1,254,745,907.44, 1,731,539,796.28 and 690,218,664.12 is: 952,496,499.87
Step by Step Solution
- Step 1: Write the proportion equation
1,254,745,907.44 : 1,731,539,796.28 = 690,218,664.12 : x - Step 2: Convert to fraction form
1,254,745,907.44/1,731,539,796.28 = 690,218,664.12/x - Step 3: Cross multiply
1,254,745,907.44x = 1,731,539,796.28 × 690,218,664.12 - Step 4: Simplify right side
1,254,745,907.44x = 1,195,141,085,058,998,528 - Step 5: Solve for x
x = 1,195,141,085,058,998,528/1,254,745,907.44 - Step 6: Final answer
x = 952,496,499.87
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.