Finding the Fourth Proportional to 8,428,386,847.58, 11,631,888,106.36 and 4,670,376,217.82
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Solution
The fourth proportional to 8,428,386,847.58, 11,631,888,106.36 and 4,670,376,217.82 is: 6,445,514,967.78
Step by Step Solution
- Step 1: Write the proportion equation
8,428,386,847.58 : 11,631,888,106.36 = 4,670,376,217.82 : x - Step 2: Convert to fraction form
8,428,386,847.58/11,631,888,106.36 = 4,670,376,217.82/x - Step 3: Cross multiply
8,428,386,847.58x = 11,631,888,106.36 × 4,670,376,217.82 - Step 4: Simplify right side
8,428,386,847.58x = 54,325,293,580,287,057,920 - Step 5: Solve for x
x = 54,325,293,580,287,057,920/8,428,386,847.58 - Step 6: Final answer
x = 6,445,514,967.78
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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.