Finding the Fourth Proportional to 77,118,194.77, 106,395,181.76 and 50,670,784.29
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Solution
The fourth proportional to 77,118,194.77, 106,395,181.76 and 50,670,784.29 is: 69,907,332.77
Step by Step Solution
- Step 1: Write the proportion equation
77,118,194.77 : 106,395,181.76 = 50,670,784.29 : x - Step 2: Convert to fraction form
77,118,194.77/106,395,181.76 = 50,670,784.29/x - Step 3: Cross multiply
77,118,194.77x = 106,395,181.76 × 50,670,784.29 - Step 4: Simplify right side
77,118,194.77x = 5,391,127,304,383,489 - Step 5: Solve for x
x = 5,391,127,304,383,489/77,118,194.77 - Step 6: Final answer
x = 69,907,332.77
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.