Finding the Fourth Proportional to 78,880,337.70, 118,320,506.55 and 44,868,113.70
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Solution
The fourth proportional to 78,880,337.70, 118,320,506.55 and 44,868,113.70 is: 67,302,170.55
Step by Step Solution
- Step 1: Write the proportion equation
78,880,337.70 : 118,320,506.55 = 44,868,113.70 : x - Step 2: Convert to fraction form
78,880,337.70/118,320,506.55 = 44,868,113.70/x - Step 3: Cross multiply
78,880,337.70x = 118,320,506.55 × 44,868,113.70 - Step 4: Simplify right side
78,880,337.70x = 5,308,817,940,926,995 - Step 5: Solve for x
x = 5,308,817,940,926,995/78,880,337.70 - Step 6: Final answer
x = 67,302,170.55
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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.