Finding the Fourth Proportional to 67,719,681.63, 93,450,032.70 and 38,351,224.68
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Solution
The fourth proportional to 67,719,681.63, 93,450,032.70 and 38,351,224.68 is: 52,922,918.63
Step by Step Solution
- Step 1: Write the proportion equation
67,719,681.63 : 93,450,032.70 = 38,351,224.68 : x - Step 2: Convert to fraction form
67,719,681.63/93,450,032.70 = 38,351,224.68/x - Step 3: Cross multiply
67,719,681.63x = 93,450,032.70 × 38,351,224.68 - Step 4: Simplify right side
67,719,681.63x = 3,583,923,200,431,047 - Step 5: Solve for x
x = 3,583,923,200,431,047/67,719,681.63 - Step 6: Final answer
x = 52,922,918.63
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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.