Finding the Fourth Proportional to 117,622,315.60, 176,433,473.40 and 78,880,266.70
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Solution
The fourth proportional to 117,622,315.60, 176,433,473.40 and 78,880,266.70 is: 118,320,400.05
Step by Step Solution
- Step 1: Write the proportion equation
117,622,315.60 : 176,433,473.40 = 78,880,266.70 : x - Step 2: Convert to fraction form
117,622,315.60/176,433,473.40 = 78,880,266.70/x - Step 3: Cross multiply
117,622,315.60x = 176,433,473.40 × 78,880,266.70 - Step 4: Simplify right side
117,622,315.60x = 13,917,119,436,599,356 - Step 5: Solve for x
x = 13,917,119,436,599,356/117,622,315.60 - Step 6: Final answer
x = 118,320,400.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.