Finding the Fourth Proportional to 3,460,818,857.73, 5,191,228,346.74 and 840,605,306.88
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Solution
The fourth proportional to 3,460,818,857.73, 5,191,228,346.74 and 840,605,306.88 is: 1,260,907,974.94
Step by Step Solution
- Step 1: Write the proportion equation
3,460,818,857.73 : 5,191,228,346.74 = 840,605,306.88 : x - Step 2: Convert to fraction form
3,460,818,857.73/5,191,228,346.74 = 840,605,306.88/x - Step 3: Cross multiply
3,460,818,857.73x = 5,191,228,346.74 × 840,605,306.88 - Step 4: Simplify right side
3,460,818,857.73x = 4,363,774,097,512,898,048 - Step 5: Solve for x
x = 4,363,774,097,512,898,048/3,460,818,857.73 - Step 6: Final answer
x = 1,260,907,974.94
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1.5x scale
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.