Finding the Fourth Proportional to 213,425,221.68, 294,513,122.88 and 119,347,123.68
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Solution
The fourth proportional to 213,425,221.68, 294,513,122.88 and 119,347,123.68 is: 164,691,379.14
Step by Step Solution
- Step 1: Write the proportion equation
213,425,221.68 : 294,513,122.88 = 119,347,123.68 : x - Step 2: Convert to fraction form
213,425,221.68/294,513,122.88 = 119,347,123.68/x - Step 3: Cross multiply
213,425,221.68x = 294,513,122.88 × 119,347,123.68 - Step 4: Simplify right side
213,425,221.68x = 35,149,294,101,742,400 - Step 5: Solve for x
x = 35,149,294,101,742,400/213,425,221.68 - Step 6: Final answer
x = 164,691,379.14
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.