Finding the Fourth Proportional to 5,379,248,475.20, 8,068,872,712.80 and 2,106,610,011.20
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Solution
The fourth proportional to 5,379,248,475.20, 8,068,872,712.80 and 2,106,610,011.20 is: 3,159,915,016.80
Step by Step Solution
- Step 1: Write the proportion equation
5,379,248,475.20 : 8,068,872,712.80 = 2,106,610,011.20 : x - Step 2: Convert to fraction form
5,379,248,475.20/8,068,872,712.80 = 2,106,610,011.20/x - Step 3: Cross multiply
5,379,248,475.20x = 8,068,872,712.80 × 2,106,610,011.20 - Step 4: Simplify right side
5,379,248,475.20x = 16,997,968,035,882,983,424 - Step 5: Solve for x
x = 16,997,968,035,882,983,424/5,379,248,475.20 - Step 6: Final answer
x = 3,159,915,016.80
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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.