Finding the Fourth Proportional to 56,842,080,853.49, 78,438,963,917.62 and 31,116,384,107.09
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Solution
The fourth proportional to 56,842,080,853.49, 78,438,963,917.62 and 31,116,384,107.09 is: 42,938,908,878.33
Step by Step Solution
- Step 1: Write the proportion equation
56,842,080,853.49 : 78,438,963,917.62 = 31,116,384,107.09 : x - Step 2: Convert to fraction form
56,842,080,853.49/78,438,963,917.62 = 31,116,384,107.09/x - Step 3: Cross multiply
56,842,080,853.49x = 78,438,963,917.62 × 31,116,384,107.09 - Step 4: Simplify right side
56,842,080,853.49x = 2,440,736,930,222,931,181,568 - Step 5: Solve for x
x = 2,440,736,930,222,931,181,568/56,842,080,853.49 - Step 6: Final answer
x = 42,938,908,878.33
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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.