Finding the Fourth Proportional to 1,909,252,388.99, 2,864,309,473.01 and 581,399,212.50
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Solution
The fourth proportional to 1,909,252,388.99, 2,864,309,473.01 and 581,399,212.50 is: 872,230,031.80
Step by Step Solution
- Step 1: Write the proportion equation
1,909,252,388.99 : 2,864,309,473.01 = 581,399,212.50 : x - Step 2: Convert to fraction form
1,909,252,388.99/2,864,309,473.01 = 581,399,212.50/x - Step 3: Cross multiply
1,909,252,388.99x = 2,864,309,473.01 × 581,399,212.50 - Step 4: Simplify right side
1,909,252,388.99x = 1,665,307,271,965,757,440 - Step 5: Solve for x
x = 1,665,307,271,965,757,440/1,909,252,388.99 - Step 6: Final answer
x = 872,230,031.80
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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.