Finding the Fourth Proportional to 233,128,021.87, 321,861,861.06 and 148,402,945.70
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Solution
The fourth proportional to 233,128,021.87, 321,861,861.06 and 148,402,945.70 is: 204,888,489.63
Step by Step Solution
- Step 1: Write the proportion equation
233,128,021.87 : 321,861,861.06 = 148,402,945.70 : x - Step 2: Convert to fraction form
233,128,021.87/321,861,861.06 = 148,402,945.70/x - Step 3: Cross multiply
233,128,021.87x = 321,861,861.06 × 148,402,945.70 - Step 4: Simplify right side
233,128,021.87x = 47,765,248,290,592,776 - Step 5: Solve for x
x = 47,765,248,290,592,776/233,128,021.87 - Step 6: Final answer
x = 204,888,489.63
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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.