Finding the Fourth Proportional to 489,937,039.52, 675,658,961.81 and 357,568,368.80
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Solution
The fourth proportional to 489,937,039.52, 675,658,961.81 and 357,568,368.80 is: 493,112,896.86
Step by Step Solution
- Step 1: Write the proportion equation
489,937,039.52 : 675,658,961.81 = 357,568,368.80 : x - Step 2: Convert to fraction form
489,937,039.52/675,658,961.81 = 357,568,368.80/x - Step 3: Cross multiply
489,937,039.52x = 675,658,961.81 × 357,568,368.80 - Step 4: Simplify right side
489,937,039.52x = 241,594,272,834,337,056 - Step 5: Solve for x
x = 241,594,272,834,337,056/489,937,039.52 - Step 6: Final answer
x = 493,112,896.86
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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.