Finding the Fourth Proportional to 139,434,135.70, 209,151,203.55 and 62,906,631.70
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Solution
The fourth proportional to 139,434,135.70, 209,151,203.55 and 62,906,631.70 is: 94,359,947.55
Step by Step Solution
- Step 1: Write the proportion equation
139,434,135.70 : 209,151,203.55 = 62,906,631.70 : x - Step 2: Convert to fraction form
139,434,135.70/209,151,203.55 = 62,906,631.70/x - Step 3: Cross multiply
139,434,135.70x = 209,151,203.55 × 62,906,631.70 - Step 4: Simplify right side
139,434,135.70x = 13,156,997,731,331,584 - Step 5: Solve for x
x = 13,156,997,731,331,584/139,434,135.70 - Step 6: Final answer
x = 94,359,947.55
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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.