Finding the Fourth Proportional to 3,151,872,830.80, 4,727,809,246.20 and 3,108,874,661.20
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Solution
The fourth proportional to 3,151,872,830.80, 4,727,809,246.20 and 3,108,874,661.20 is: 4,663,311,991.80
Step by Step Solution
- Step 1: Write the proportion equation
3,151,872,830.80 : 4,727,809,246.20 = 3,108,874,661.20 : x - Step 2: Convert to fraction form
3,151,872,830.80/4,727,809,246.20 = 3,108,874,661.20/x - Step 3: Cross multiply
3,151,872,830.80x = 4,727,809,246.20 × 3,108,874,661.20 - Step 4: Simplify right side
3,151,872,830.80x = 14,698,166,368,498,251,776 - Step 5: Solve for x
x = 14,698,166,368,498,251,776/3,151,872,830.80 - Step 6: Final answer
x = 4,663,311,991.80
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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.