Finding the Fourth Proportional to 216,811,281.94, 299,199,951.50 and 117,692,097.97
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Solution
The fourth proportional to 216,811,281.94, 299,199,951.50 and 117,692,097.97 is: 162,415,302.78
Step by Step Solution
- Step 1: Write the proportion equation
216,811,281.94 : 299,199,951.50 = 117,692,097.97 : x - Step 2: Convert to fraction form
216,811,281.94/299,199,951.50 = 117,692,097.97/x - Step 3: Cross multiply
216,811,281.94x = 299,199,951.50 × 117,692,097.97 - Step 4: Simplify right side
216,811,281.94x = 35,213,470,002,472,788 - Step 5: Solve for x
x = 35,213,470,002,472,788/216,811,281.94 - Step 6: Final answer
x = 162,415,302.78
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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.