Finding the Fourth Proportional to 228,080,266.76, 314,757,408.02 and 128,958,886.01
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Solution
The fourth proportional to 228,080,266.76, 314,757,408.02 and 128,958,886.01 is: 177,967,016.95
Step by Step Solution
- Step 1: Write the proportion equation
228,080,266.76 : 314,757,408.02 = 128,958,886.01 : x - Step 2: Convert to fraction form
228,080,266.76/314,757,408.02 = 128,958,886.01/x - Step 3: Cross multiply
228,080,266.76x = 314,757,408.02 × 128,958,886.01 - Step 4: Simplify right side
228,080,266.76x = 40,590,764,699,435,656 - Step 5: Solve for x
x = 40,590,764,699,435,656/228,080,266.76 - Step 6: Final answer
x = 177,967,016.95
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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.