Finding the Fourth Proportional to 1,236,787,927.49, 1,706,953,907.09 and 754,259,817.46
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Solution
The fourth proportional to 1,236,787,927.49, 1,706,953,907.09 and 754,259,817.46 is: 1,040,992,326.78
Step by Step Solution
- Step 1: Write the proportion equation
1,236,787,927.49 : 1,706,953,907.09 = 754,259,817.46 : x - Step 2: Convert to fraction form
1,236,787,927.49/1,706,953,907.09 = 754,259,817.46/x - Step 3: Cross multiply
1,236,787,927.49x = 1,706,953,907.09 × 754,259,817.46 - Step 4: Simplify right side
1,236,787,927.49x = 1,287,486,742,368,184,320 - Step 5: Solve for x
x = 1,287,486,742,368,184,320/1,236,787,927.49 - Step 6: Final answer
x = 1,040,992,326.78
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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.