Finding the Fourth Proportional to 7,175,881,771.20, 10,763,822,656.80 and 5,240,964,139.20
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Solution
The fourth proportional to 7,175,881,771.20, 10,763,822,656.80 and 5,240,964,139.20 is: 7,861,446,208.80
Step by Step Solution
- Step 1: Write the proportion equation
7,175,881,771.20 : 10,763,822,656.80 = 5,240,964,139.20 : x - Step 2: Convert to fraction form
7,175,881,771.20/10,763,822,656.80 = 5,240,964,139.20/x - Step 3: Cross multiply
7,175,881,771.20x = 10,763,822,656.80 × 5,240,964,139.20 - Step 4: Simplify right side
7,175,881,771.20x = 56,412,808,544,997,261,312 - Step 5: Solve for x
x = 56,412,808,544,997,261,312/7,175,881,771.20 - Step 6: Final answer
x = 7,861,446,208.80
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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.