Finding the Fourth Proportional to 20,701,505.68, 31,058,345.67 and 6,128,795.68
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Solution
The fourth proportional to 20,701,505.68, 31,058,345.67 and 6,128,795.68 is: 9,194,995.65
Step by Step Solution
- Step 1: Write the proportion equation
20,701,505.68 : 31,058,345.67 = 6,128,795.68 : x - Step 2: Convert to fraction form
20,701,505.68/31,058,345.67 = 6,128,795.68/x - Step 3: Cross multiply
20,701,505.68x = 31,058,345.67 × 6,128,795.68 - Step 4: Simplify right side
20,701,505.68x = 190,350,254,770,242.72 - Step 5: Solve for x
x = 190,350,254,770,242.72/20,701,505.68 - Step 6: Final answer
x = 9,194,995.65
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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.