Finding the Fourth Proportional to 98,898,027.63, 136,479,279.34 and 55,437,963.63
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Solution
The fourth proportional to 98,898,027.63, 136,479,279.34 and 55,437,963.63 is: 76,504,390.49
Step by Step Solution
- Step 1: Write the proportion equation
98,898,027.63 : 136,479,279.34 = 55,437,963.63 : x - Step 2: Convert to fraction form
98,898,027.63/136,479,279.34 = 55,437,963.63/x - Step 3: Cross multiply
98,898,027.63x = 136,479,279.34 × 55,437,963.63 - Step 4: Simplify right side
98,898,027.63x = 7,566,133,324,299,531 - Step 5: Solve for x
x = 7,566,133,324,299,531/98,898,027.63 - Step 6: Final answer
x = 76,504,390.49
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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.