Finding the Fourth Proportional to 10,502,022.80, 15,721,541.40 and 6,239,997.20
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Solution
The fourth proportional to 10,502,022.80, 15,721,541.40 and 6,239,997.20 is: 9,341,283.69
Step by Step Solution
- Step 1: Write the proportion equation
10,502,022.80 : 15,721,541.40 = 6,239,997.20 : x - Step 2: Convert to fraction form
10,502,022.80/15,721,541.40 = 6,239,997.20/x - Step 3: Cross multiply
10,502,022.80x = 15,721,541.40 × 6,239,997.20 - Step 4: Simplify right side
10,502,022.80x = 98,102,374,315,684.08 - Step 5: Solve for x
x = 98,102,374,315,684.08/10,502,022.80 - Step 6: Final answer
x = 9,341,283.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.