Finding the Fourth Proportional to 682,738,753.55, 942,176,015.99 and 369,472,967.51
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Solution
The fourth proportional to 682,738,753.55, 942,176,015.99 and 369,472,967.51 is: 509,870,820.62
Step by Step Solution
- Step 1: Write the proportion equation
682,738,753.55 : 942,176,015.99 = 369,472,967.51 : x - Step 2: Convert to fraction form
682,738,753.55/942,176,015.99 = 369,472,967.51/x - Step 3: Cross multiply
682,738,753.55x = 942,176,015.99 × 369,472,967.51 - Step 4: Simplify right side
682,738,753.55x = 348,108,568,538,016,256 - Step 5: Solve for x
x = 348,108,568,538,016,256/682,738,753.55 - Step 6: Final answer
x = 509,870,820.62
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1.5x scale
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.