Finding the Fourth Proportional to 4,991,558,288, 6,888,266,238 and 2,763,842,646.56
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Solution
The fourth proportional to 4,991,558,288, 6,888,266,238 and 2,763,842,646.56 is: 3,814,056,230.74
Step by Step Solution
- Step 1: Write the proportion equation
4,991,558,288 : 6,888,266,238 = 2,763,842,646.56 : x - Step 2: Convert to fraction form
4,991,558,288/6,888,266,238 = 2,763,842,646.56/x - Step 3: Cross multiply
4,991,558,288x = 6,888,266,238 × 2,763,842,646.56 - Step 4: Simplify right side
4,991,558,288x = 19,038,083,989,443,813,376 - Step 5: Solve for x
x = 19,038,083,989,443,813,376/4,991,558,288 - Step 6: Final answer
x = 3,814,056,230.74
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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.