Finding the Fourth Proportional to 8,999,506,395.08, 12,419,314,505.58 and 5,382,530,070.94
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Solution
The fourth proportional to 8,999,506,395.08, 12,419,314,505.58 and 5,382,530,070.94 is: 7,427,888,914.37
Step by Step Solution
- Step 1: Write the proportion equation
8,999,506,395.08 : 12,419,314,505.58 = 5,382,530,070.94 : x - Step 2: Convert to fraction form
8,999,506,395.08/12,419,314,505.58 = 5,382,530,070.94/x - Step 3: Cross multiply
8,999,506,395.08x = 12,419,314,505.58 × 5,382,530,070.94 - Step 4: Simplify right side
8,999,506,395.08x = 66,847,333,786,782,121,984 - Step 5: Solve for x
x = 66,847,333,786,782,121,984/8,999,506,395.08 - Step 6: Final answer
x = 7,427,888,914.37
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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.