Finding the Fourth Proportional to 489,887,628.29, 676,044,628.99 and 269,871,054.29
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Solution
The fourth proportional to 489,887,628.29, 676,044,628.99 and 269,871,054.29 is: 372,421,890.73
Step by Step Solution
- Step 1: Write the proportion equation
489,887,628.29 : 676,044,628.99 = 269,871,054.29 : x - Step 2: Convert to fraction form
489,887,628.29/676,044,628.99 = 269,871,054.29/x - Step 3: Cross multiply
489,887,628.29x = 676,044,628.99 × 269,871,054.29 - Step 4: Simplify right side
489,887,628.29x = 182,444,876,769,203,776 - Step 5: Solve for x
x = 182,444,876,769,203,776/489,887,628.29 - Step 6: Final answer
x = 372,421,890.73
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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.