Finding the Fourth Proportional to 98,837,645.60, 136,395,714.80 and 54,183,537.92
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Solution
The fourth proportional to 98,837,645.60, 136,395,714.80 and 54,183,537.92 is: 74,773,152.88
Step by Step Solution
- Step 1: Write the proportion equation
98,837,645.60 : 136,395,714.80 = 54,183,537.92 : x - Step 2: Convert to fraction form
98,837,645.60/136,395,714.80 = 54,183,537.92/x - Step 3: Cross multiply
98,837,645.60x = 136,395,714.80 × 54,183,537.92 - Step 4: Simplify right side
98,837,645.60x = 7,390,402,384,991,306 - Step 5: Solve for x
x = 7,390,402,384,991,306/98,837,645.60 - Step 6: Final answer
x = 74,773,152.88
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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.