Finding the Fourth Proportional to 420,060,163.02, 579,667,829.36 and 231,884,415.24
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Solution
The fourth proportional to 420,060,163.02, 579,667,829.36 and 231,884,415.24 is: 319,992,104.65
Step by Step Solution
- Step 1: Write the proportion equation
420,060,163.02 : 579,667,829.36 = 231,884,415.24 : x - Step 2: Convert to fraction form
420,060,163.02/579,667,829.36 = 231,884,415.24/x - Step 3: Cross multiply
420,060,163.02x = 579,667,829.36 × 231,884,415.24 - Step 4: Simplify right side
420,060,163.02x = 134,415,935,644,583,712 - Step 5: Solve for x
x = 134,415,935,644,583,712/420,060,163.02 - Step 6: Final answer
x = 319,992,104.65
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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.