Finding the Fourth Proportional to 55,689,285.99, 76,849,655.00 and 30,571,391.33
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Solution
The fourth proportional to 55,689,285.99, 76,849,655.00 and 30,571,391.33 is: 42,187,663.83
Step by Step Solution
- Step 1: Write the proportion equation
55,689,285.99 : 76,849,655.00 = 30,571,391.33 : x - Step 2: Convert to fraction form
55,689,285.99/76,849,655.00 = 30,571,391.33/x - Step 3: Cross multiply
55,689,285.99x = 76,849,655.00 × 30,571,391.33 - Step 4: Simplify right side
55,689,285.99x = 2,349,400,876,043,386 - Step 5: Solve for x
x = 2,349,400,876,043,386/55,689,285.99 - Step 6: Final answer
x = 42,187,663.83
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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.