Finding the Fourth Proportional to 15,758,254, 21,756,511.68 and 9,885,939.48
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Solution
The fourth proportional to 15,758,254, 21,756,511.68 and 9,885,939.48 is: 13,648,945.99
Step by Step Solution
- Step 1: Write the proportion equation
15,758,254 : 21,756,511.68 = 9,885,939.48 : x - Step 2: Convert to fraction form
15,758,254/21,756,511.68 = 9,885,939.48/x - Step 3: Cross multiply
15,758,254x = 21,756,511.68 × 9,885,939.48 - Step 4: Simplify right side
15,758,254x = 215,083,557,764,393.12 - Step 5: Solve for x
x = 215,083,557,764,393.12/15,758,254 - Step 6: Final answer
x = 13,648,945.99
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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.