Finding the Fourth Proportional to 489,937,045, 675,658,969.41 and 357,568,374.28
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Solution
The fourth proportional to 489,937,045, 675,658,969.41 and 357,568,374.28 is: 493,112,904.45
Step by Step Solution
- Step 1: Write the proportion equation
489,937,045 : 675,658,969.41 = 357,568,374.28 : x - Step 2: Convert to fraction form
489,937,045/675,658,969.41 = 357,568,374.28/x - Step 3: Cross multiply
489,937,045x = 675,658,969.41 × 357,568,374.28 - Step 4: Simplify right side
489,937,045x = 241,594,279,259,633,920 - Step 5: Solve for x
x = 241,594,279,259,633,920/489,937,045 - Step 6: Final answer
x = 493,112,904.45
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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.