Finding the Fourth Proportional to 10,769,652.78, 14,878,327.76 and 7,057,305.93
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Solution
The fourth proportional to 10,769,652.78, 14,878,327.76 and 7,057,305.93 is: 9,749,702.52
Step by Step Solution
- Step 1: Write the proportion equation
10,769,652.78 : 14,878,327.76 = 7,057,305.93 : x - Step 2: Convert to fraction form
10,769,652.78/14,878,327.76 = 7,057,305.93/x - Step 3: Cross multiply
10,769,652.78x = 14,878,327.76 × 7,057,305.93 - Step 4: Simplify right side
10,769,652.78x = 105,000,910,776,103.70 - Step 5: Solve for x
x = 105,000,910,776,103.70/10,769,652.78 - Step 6: Final answer
x = 9,749,702.52
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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.