Finding the Fourth Proportional to 539,493,007.80, 809,239,511.70 and 539,493,007.80
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Solution
The fourth proportional to 539,493,007.80, 809,239,511.70 and 539,493,007.80 is: 809,239,511.70
Step by Step Solution
- Step 1: Write the proportion equation
539,493,007.80 : 809,239,511.70 = 539,493,007.80 : x - Step 2: Convert to fraction form
539,493,007.80/809,239,511.70 = 539,493,007.80/x - Step 3: Cross multiply
539,493,007.80x = 809,239,511.70 × 539,493,007.80 - Step 4: Simplify right side
539,493,007.80x = 436,579,058,197,636,288 - Step 5: Solve for x
x = 436,579,058,197,636,288/539,493,007.80 - Step 6: Final answer
x = 809,239,511.70
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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.