Finding the Fourth Proportional to 867,929,221.09, 1,197,741,414.86 and 471,452,525.47
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Solution
The fourth proportional to 867,929,221.09, 1,197,741,414.86 and 471,452,525.47 is: 650,603,990.71
Step by Step Solution
- Step 1: Write the proportion equation
867,929,221.09 : 1,197,741,414.86 = 471,452,525.47 : x - Step 2: Convert to fraction form
867,929,221.09/1,197,741,414.86 = 471,452,525.47/x - Step 3: Cross multiply
867,929,221.09x = 1,197,741,414.86 × 471,452,525.47 - Step 4: Simplify right side
867,929,221.09x = 564,678,214,895,757,952 - Step 5: Solve for x
x = 564,678,214,895,757,952/867,929,221.09 - Step 6: Final answer
x = 650,603,990.71
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Double scale
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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.