Finding the Fourth Proportional to 884,970,216.58, 1,221,258,714.38 and 488,493,102.70
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Solution
The fourth proportional to 884,970,216.58, 1,221,258,714.38 and 488,493,102.70 is: 674,120,379.88
Step by Step Solution
- Step 1: Write the proportion equation
884,970,216.58 : 1,221,258,714.38 = 488,493,102.70 : x - Step 2: Convert to fraction form
884,970,216.58/1,221,258,714.38 = 488,493,102.70/x - Step 3: Cross multiply
884,970,216.58x = 1,221,258,714.38 × 488,493,102.70 - Step 4: Simplify right side
884,970,216.58x = 596,576,458,580,976,128 - Step 5: Solve for x
x = 596,576,458,580,976,128/884,970,216.58 - Step 6: Final answer
x = 674,120,379.88
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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.