Finding the Fourth Proportional to 117,515,784.70, 164,692,159.70 and 117,515,784.70
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Solution
The fourth proportional to 117,515,784.70, 164,692,159.70 and 117,515,784.70 is: 164,692,159.70
Step by Step Solution
- Step 1: Write the proportion equation
117,515,784.70 : 164,692,159.70 = 117,515,784.70 : x - Step 2: Convert to fraction form
117,515,784.70/164,692,159.70 = 117,515,784.70/x - Step 3: Cross multiply
117,515,784.70x = 164,692,159.70 × 117,515,784.70 - Step 4: Simplify right side
117,515,784.70x = 19,353,928,381,083,216 - Step 5: Solve for x
x = 19,353,928,381,083,216/117,515,784.70 - Step 6: Final answer
x = 164,692,159.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.