Finding the Fourth Proportional to 408,912,220.62, 613,559,871.12 and 201,537,583.72
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Solution
The fourth proportional to 408,912,220.62, 613,559,871.12 and 201,537,583.72 is: 302,400,778.59
Step by Step Solution
- Step 1: Write the proportion equation
408,912,220.62 : 613,559,871.12 = 201,537,583.72 : x - Step 2: Convert to fraction form
408,912,220.62/613,559,871.12 = 201,537,583.72/x - Step 3: Cross multiply
408,912,220.62x = 613,559,871.12 × 201,537,583.72 - Step 4: Simplify right side
408,912,220.62x = 123,655,373,892,301,264 - Step 5: Solve for x
x = 123,655,373,892,301,264/408,912,220.62 - Step 6: Final answer
x = 302,400,778.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.