Finding the Fourth Proportional to 120,510,897.64, 164,080,187.08 and 120,128,260.12
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Solution
The fourth proportional to 120,510,897.64, 164,080,187.08 and 120,128,260.12 is: 163,559,211.49
Step by Step Solution
- Step 1: Write the proportion equation
120,510,897.64 : 164,080,187.08 = 120,128,260.12 : x - Step 2: Convert to fraction form
120,510,897.64/164,080,187.08 = 120,128,260.12/x - Step 3: Cross multiply
120,510,897.64x = 164,080,187.08 × 120,128,260.12 - Step 4: Simplify right side
120,510,897.64x = 19,710,667,394,084,504 - Step 5: Solve for x
x = 19,710,667,394,084,504/120,510,897.64 - Step 6: Final answer
x = 163,559,211.49
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Why These Related Problems?
These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.