Finding the Fourth Proportional to 103,631,769.31, 155,501,452.79 and 42,265,948.99
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Solution
The fourth proportional to 103,631,769.31, 155,501,452.79 and 42,265,948.99 is: 63,420,865.20
Step by Step Solution
- Step 1: Write the proportion equation
103,631,769.31 : 155,501,452.79 = 42,265,948.99 : x - Step 2: Convert to fraction form
103,631,769.31/155,501,452.79 = 42,265,948.99/x - Step 3: Cross multiply
103,631,769.31x = 155,501,452.79 × 42,265,948.99 - Step 4: Simplify right side
103,631,769.31x = 6,572,416,471,209,944 - Step 5: Solve for x
x = 6,572,416,471,209,944/103,631,769.31 - Step 6: Final answer
x = 63,420,865.20
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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.