Finding the Fourth Proportional to 420,615,141.06, 630,358,748.01 and 327,354,724.06
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Solution
The fourth proportional to 420,615,141.06, 630,358,748.01 and 327,354,724.06 is: 490,593,166.70
Step by Step Solution
- Step 1: Write the proportion equation
420,615,141.06 : 630,358,748.01 = 327,354,724.06 : x - Step 2: Convert to fraction form
420,615,141.06/630,358,748.01 = 327,354,724.06/x - Step 3: Cross multiply
420,615,141.06x = 630,358,748.01 × 327,354,724.06 - Step 4: Simplify right side
420,615,141.06x = 206,350,914,013,620,608 - Step 5: Solve for x
x = 206,350,914,013,620,608/420,615,141.06 - Step 6: Final answer
x = 490,593,166.70
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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.