Finding the Fourth Proportional to 171,872,782.62, 257,806,638.09 and 42,480,406.14
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Solution
The fourth proportional to 171,872,782.62, 257,806,638.09 and 42,480,406.14 is: 63,719,982.45
Step by Step Solution
- Step 1: Write the proportion equation
171,872,782.62 : 257,806,638.09 = 42,480,406.14 : x - Step 2: Convert to fraction form
171,872,782.62/257,806,638.09 = 42,480,406.14/x - Step 3: Cross multiply
171,872,782.62x = 257,806,638.09 × 42,480,406.14 - Step 4: Simplify right side
171,872,782.62x = 10,951,730,691,651,194 - Step 5: Solve for x
x = 10,951,730,691,651,194/171,872,782.62 - Step 6: Final answer
x = 63,719,982.45
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.