Finding the Fourth Proportional to 682,748,982.99, 942,196,565.36 and 369,483,224.69
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Solution
The fourth proportional to 682,748,982.99, 942,196,565.36 and 369,483,224.69 is: 509,888,456.72
Step by Step Solution
- Step 1: Write the proportion equation
682,748,982.99 : 942,196,565.36 = 369,483,224.69 : x - Step 2: Convert to fraction form
682,748,982.99/942,196,565.36 = 369,483,224.69/x - Step 3: Cross multiply
682,748,982.99x = 942,196,565.36 × 369,483,224.69 - Step 4: Simplify right side
682,748,982.99x = 348,125,825,264,334,336 - Step 5: Solve for x
x = 348,125,825,264,334,336/682,748,982.99 - Step 6: Final answer
x = 509,888,456.72
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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.