Finding the Fourth Proportional to 518,621,378.04, 777,933,379.26 and 211,913,490.96
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Solution
The fourth proportional to 518,621,378.04, 777,933,379.26 and 211,913,490.96 is: 317,870,772.62
Step by Step Solution
- Step 1: Write the proportion equation
518,621,378.04 : 777,933,379.26 = 211,913,490.96 : x - Step 2: Convert to fraction form
518,621,378.04/777,933,379.26 = 211,913,490.96/x - Step 3: Cross multiply
518,621,378.04x = 777,933,379.26 × 211,913,490.96 - Step 4: Simplify right side
518,621,378.04x = 164,854,578,133,296,256 - Step 5: Solve for x
x = 164,854,578,133,296,256/518,621,378.04 - Step 6: Final answer
x = 317,870,772.62
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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.