Finding the Fourth Proportional to 7,858,663.01, 10,839,109.10 and 6,939,270.08
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Solution
The fourth proportional to 7,858,663.01, 10,839,109.10 and 6,939,270.08 is: 9,571,030.77
Step by Step Solution
- Step 1: Write the proportion equation
7,858,663.01 : 10,839,109.10 = 6,939,270.08 : x - Step 2: Convert to fraction form
7,858,663.01/10,839,109.10 = 6,939,270.08/x - Step 3: Cross multiply
7,858,663.01x = 10,839,109.10 × 6,939,270.08 - Step 4: Simplify right side
7,858,663.01x = 75,215,505,515,931.67 - Step 5: Solve for x
x = 75,215,505,515,931.67/7,858,663.01 - Step 6: Final answer
x = 9,571,030.77
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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.