Finding the Fourth Proportional to 10,502,023.30, 15,721,542.15 and 6,239,997.70
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Solution
The fourth proportional to 10,502,023.30, 15,721,542.15 and 6,239,997.70 is: 9,341,284.44
Step by Step Solution
- Step 1: Write the proportion equation
10,502,023.30 : 15,721,542.15 = 6,239,997.70 : x - Step 2: Convert to fraction form
10,502,023.30/15,721,542.15 = 6,239,997.70/x - Step 3: Cross multiply
10,502,023.30x = 15,721,542.15 × 6,239,997.70 - Step 4: Simplify right side
10,502,023.30x = 98,102,386,856,453.06 - Step 5: Solve for x
x = 98,102,386,856,453.06/10,502,023.30 - Step 6: Final answer
x = 9,341,284.44
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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.