Finding the Fourth Proportional to 217,290,905.70, 325,936,358.55 and 166,272,569.70
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Solution
The fourth proportional to 217,290,905.70, 325,936,358.55 and 166,272,569.70 is: 249,408,854.55
Step by Step Solution
- Step 1: Write the proportion equation
217,290,905.70 : 325,936,358.55 = 166,272,569.70 : x - Step 2: Convert to fraction form
217,290,905.70/325,936,358.55 = 166,272,569.70/x - Step 3: Cross multiply
217,290,905.70x = 325,936,358.55 × 166,272,569.70 - Step 4: Simplify right side
217,290,905.70x = 54,194,275,894,769,064 - Step 5: Solve for x
x = 54,194,275,894,769,064/217,290,905.70 - Step 6: Final answer
x = 249,408,854.55
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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.