Finding the Fourth Proportional to 4,212,209,898.80, 6,318,314,848.20 and 2,987,769,834.80
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Solution
The fourth proportional to 4,212,209,898.80, 6,318,314,848.20 and 2,987,769,834.80 is: 4,481,654,752.20
Step by Step Solution
- Step 1: Write the proportion equation
4,212,209,898.80 : 6,318,314,848.20 = 2,987,769,834.80 : x - Step 2: Convert to fraction form
4,212,209,898.80/6,318,314,848.20 = 2,987,769,834.80/x - Step 3: Cross multiply
4,212,209,898.80x = 6,318,314,848.20 × 2,987,769,834.80 - Step 4: Simplify right side
4,212,209,898.80x = 18,877,670,510,220,902,400 - Step 5: Solve for x
x = 18,877,670,510,220,902,400/4,212,209,898.80 - Step 6: Final answer
x = 4,481,654,752.20
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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.