Finding the Fourth Proportional to 6,318,379,878.66, 8,719,638,318.99 and 3,498,987,804.84
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Solution
The fourth proportional to 6,318,379,878.66, 8,719,638,318.99 and 3,498,987,804.84 is: 4,828,754,954.07
Step by Step Solution
- Step 1: Write the proportion equation
6,318,379,878.66 : 8,719,638,318.99 = 3,498,987,804.84 : x - Step 2: Convert to fraction form
6,318,379,878.66/8,719,638,318.99 = 3,498,987,804.84/x - Step 3: Cross multiply
6,318,379,878.66x = 8,719,638,318.99 × 3,498,987,804.84 - Step 4: Simplify right side
6,318,379,878.66x = 30,509,908,140,761,567,232 - Step 5: Solve for x
x = 30,509,908,140,761,567,232/6,318,379,878.66 - Step 6: Final answer
x = 4,828,754,954.07
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1.5x scale
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.