Finding the Fourth Proportional to 432,035,976.50, 647,980,932.58 and 121,072,077.08
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Solution
The fourth proportional to 432,035,976.50, 647,980,932.58 and 121,072,077.08 is: 181,587,649.36
Step by Step Solution
- Step 1: Write the proportion equation
432,035,976.50 : 647,980,932.58 = 121,072,077.08 : x - Step 2: Convert to fraction form
432,035,976.50/647,980,932.58 = 121,072,077.08/x - Step 3: Cross multiply
432,035,976.50x = 647,980,932.58 × 121,072,077.08 - Step 4: Simplify right side
432,035,976.50x = 78,452,397,412,153,456 - Step 5: Solve for x
x = 78,452,397,412,153,456/432,035,976.50 - Step 6: Final answer
x = 181,587,649.36
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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.