Finding the Fourth Proportional to 70,864,391.08, 97,792,860.90 and 38,269,343.08
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Solution
The fourth proportional to 70,864,391.08, 97,792,860.90 and 38,269,343.08 is: 52,811,694.10
Step by Step Solution
- Step 1: Write the proportion equation
70,864,391.08 : 97,792,860.90 = 38,269,343.08 : x - Step 2: Convert to fraction form
70,864,391.08/97,792,860.90 = 38,269,343.08/x - Step 3: Cross multiply
70,864,391.08x = 97,792,860.90 × 38,269,343.08 - Step 4: Simplify right side
70,864,391.08x = 3,742,468,544,556,817.50 - Step 5: Solve for x
x = 3,742,468,544,556,817.50/70,864,391.08 - Step 6: Final answer
x = 52,811,694.10
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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.