Finding the Fourth Proportional to 77,217,947.76, 106,534,842.09 and 43,722,849.99
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Solution
The fourth proportional to 77,217,947.76, 106,534,842.09 and 43,722,849.99 is: 60,322,853.10
Step by Step Solution
- Step 1: Write the proportion equation
77,217,947.76 : 106,534,842.09 = 43,722,849.99 : x - Step 2: Convert to fraction form
77,217,947.76/106,534,842.09 = 43,722,849.99/x - Step 3: Cross multiply
77,217,947.76x = 106,534,842.09 × 43,722,849.99 - Step 4: Simplify right side
77,217,947.76x = 4,658,006,919,255,074 - Step 5: Solve for x
x = 4,658,006,919,255,074/77,217,947.76 - Step 6: Final answer
x = 60,322,853.10
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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.