Finding the Fourth Proportional to 5,391,882,848.80, 8,088,720,068.40 and 2,120,438,778.40
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Solution
The fourth proportional to 5,391,882,848.80, 8,088,720,068.40 and 2,120,438,778.40 is: 3,181,010,452.49
Step by Step Solution
- Step 1: Write the proportion equation
5,391,882,848.80 : 8,088,720,068.40 = 2,120,438,778.40 : x - Step 2: Convert to fraction form
5,391,882,848.80/8,088,720,068.40 = 2,120,438,778.40/x - Step 3: Cross multiply
5,391,882,848.80x = 8,088,720,068.40 × 2,120,438,778.40 - Step 4: Simplify right side
5,391,882,848.80x = 17,151,635,700,657,659,904 - Step 5: Solve for x
x = 17,151,635,700,657,659,904/5,391,882,848.80 - Step 6: Final answer
x = 3,181,010,452.49
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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.