Finding the Fourth Proportional to 521,946,460.08, 719,617,474.22 and 427,512,718.62
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Solution
The fourth proportional to 521,946,460.08, 719,617,474.22 and 427,512,718.62 is: 589,419,885.56
Step by Step Solution
- Step 1: Write the proportion equation
521,946,460.08 : 719,617,474.22 = 427,512,718.62 : x - Step 2: Convert to fraction form
521,946,460.08/719,617,474.22 = 427,512,718.62/x - Step 3: Cross multiply
521,946,460.08x = 719,617,474.22 × 427,512,718.62 - Step 4: Simplify right side
521,946,460.08x = 307,645,622,768,112,448 - Step 5: Solve for x
x = 307,645,622,768,112,448/521,946,460.08 - Step 6: Final answer
x = 589,419,885.56
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1.5x scale
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.