Finding the Fourth Proportional to 15,179,130.24, 20,947,133.97 and 8,209,814.91
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Solution
The fourth proportional to 15,179,130.24, 20,947,133.97 and 8,209,814.91 is: 11,329,509.01
Step by Step Solution
- Step 1: Write the proportion equation
15,179,130.24 : 20,947,133.97 = 8,209,814.91 : x - Step 2: Convert to fraction form
15,179,130.24/20,947,133.97 = 8,209,814.91/x - Step 3: Cross multiply
15,179,130.24x = 20,947,133.97 × 8,209,814.91 - Step 4: Simplify right side
15,179,130.24x = 171,972,092,788,673.50 - Step 5: Solve for x
x = 171,972,092,788,673.50/15,179,130.24 - Step 6: Final answer
x = 11,329,509.01
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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.