Finding the Fourth Proportional to 217,742,574.60, 326,613,861.90 and 125,909,569.80
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Solution
The fourth proportional to 217,742,574.60, 326,613,861.90 and 125,909,569.80 is: 188,864,354.70
Step by Step Solution
- Step 1: Write the proportion equation
217,742,574.60 : 326,613,861.90 = 125,909,569.80 : x - Step 2: Convert to fraction form
217,742,574.60/326,613,861.90 = 125,909,569.80/x - Step 3: Cross multiply
217,742,574.60x = 326,613,861.90 × 125,909,569.80 - Step 4: Simplify right side
217,742,574.60x = 41,123,810,842,545,608 - Step 5: Solve for x
x = 41,123,810,842,545,608/217,742,574.60 - Step 6: Final answer
x = 188,864,354.70
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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.