Finding the Fourth Proportional to 161,254,349.16, 240,704,305.95 and 138,372,326.54
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Solution
The fourth proportional to 161,254,349.16, 240,704,305.95 and 138,372,326.54 is: 206,548,319.45
Step by Step Solution
- Step 1: Write the proportion equation
161,254,349.16 : 240,704,305.95 = 138,372,326.54 : x - Step 2: Convert to fraction form
161,254,349.16/240,704,305.95 = 138,372,326.54/x - Step 3: Cross multiply
161,254,349.16x = 240,704,305.95 × 138,372,326.54 - Step 4: Simplify right side
161,254,349.16x = 33,306,814,822,497,460 - Step 5: Solve for x
x = 33,306,814,822,497,460/161,254,349.16 - Step 6: Final answer
x = 206,548,319.45
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.