Finding the Fourth Proportional to 11,878,769,349.28, 16,394,107,029.61 and 7,056,153,387.64
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Solution
The fourth proportional to 11,878,769,349.28, 16,394,107,029.61 and 7,056,153,387.64 is: 9,738,326,458.99
Step by Step Solution
- Step 1: Write the proportion equation
11,878,769,349.28 : 16,394,107,029.61 = 7,056,153,387.64 : x - Step 2: Convert to fraction form
11,878,769,349.28/16,394,107,029.61 = 7,056,153,387.64/x - Step 3: Cross multiply
11,878,769,349.28x = 16,394,107,029.61 × 7,056,153,387.64 - Step 4: Simplify right side
11,878,769,349.28x = 115,679,333,854,236,147,712 - Step 5: Solve for x
x = 115,679,333,854,236,147,712/11,878,769,349.28 - Step 6: Final answer
x = 9,738,326,458.99
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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.