Finding the Fourth Proportional to 478,797,584.63, 660,740,368.35 and 258,781,010.63
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Solution
The fourth proportional to 478,797,584.63, 660,740,368.35 and 258,781,010.63 is: 357,117,633.37
Step by Step Solution
- Step 1: Write the proportion equation
478,797,584.63 : 660,740,368.35 = 258,781,010.63 : x - Step 2: Convert to fraction form
478,797,584.63/660,740,368.35 = 258,781,010.63/x - Step 3: Cross multiply
478,797,584.63x = 660,740,368.35 × 258,781,010.63 - Step 4: Simplify right side
478,797,584.63x = 170,987,060,284,357,568 - Step 5: Solve for x
x = 170,987,060,284,357,568/478,797,584.63 - Step 6: Final answer
x = 357,117,633.37
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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.