Finding the Fourth Proportional to 197,964,603.60, 296,946,905.40 and 133,467,349.20
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Solution
The fourth proportional to 197,964,603.60, 296,946,905.40 and 133,467,349.20 is: 200,201,023.80
Step by Step Solution
- Step 1: Write the proportion equation
197,964,603.60 : 296,946,905.40 = 133,467,349.20 : x - Step 2: Convert to fraction form
197,964,603.60/296,946,905.40 = 133,467,349.20/x - Step 3: Cross multiply
197,964,603.60x = 296,946,905.40 × 133,467,349.20 - Step 4: Simplify right side
197,964,603.60x = 39,632,716,316,881,160 - Step 5: Solve for x
x = 39,632,716,316,881,160/197,964,603.60 - Step 6: Final answer
x = 200,201,023.80
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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.