Finding the Fourth Proportional to 559,872,135.20, 839,808,202.80 and 414,753,312.80
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Solution
The fourth proportional to 559,872,135.20, 839,808,202.80 and 414,753,312.80 is: 622,129,969.20
Step by Step Solution
- Step 1: Write the proportion equation
559,872,135.20 : 839,808,202.80 = 414,753,312.80 : x - Step 2: Convert to fraction form
559,872,135.20/839,808,202.80 = 414,753,312.80/x - Step 3: Cross multiply
559,872,135.20x = 839,808,202.80 × 414,753,312.80 - Step 4: Simplify right side
559,872,135.20x = 348,313,234,227,914,240 - Step 5: Solve for x
x = 348,313,234,227,914,240/559,872,135.20 - Step 6: Final answer
x = 622,129,969.20
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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.