Finding the Fourth Proportional to 77,182,904.70, 115,774,357.05 and 38,919,152.70
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Solution
The fourth proportional to 77,182,904.70, 115,774,357.05 and 38,919,152.70 is: 58,378,729.05
Step by Step Solution
- Step 1: Write the proportion equation
77,182,904.70 : 115,774,357.05 = 38,919,152.70 : x - Step 2: Convert to fraction form
77,182,904.70/115,774,357.05 = 38,919,152.70/x - Step 3: Cross multiply
77,182,904.70x = 115,774,357.05 × 38,919,152.70 - Step 4: Simplify right side
77,182,904.70x = 4,505,839,880,773,272 - Step 5: Solve for x
x = 4,505,839,880,773,272/77,182,904.70 - Step 6: Final answer
x = 58,378,729.05
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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.