Finding the Fourth Proportional to 426,453,926.84, 639,719,928.20 and 119,743,973
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Solution
The fourth proportional to 426,453,926.84, 639,719,928.20 and 119,743,973 is: 179,626,920.96
Step by Step Solution
- Step 1: Write the proportion equation
426,453,926.84 : 639,719,928.20 = 119,743,973 : x - Step 2: Convert to fraction form
426,453,926.84/639,719,928.20 = 119,743,973/x - Step 3: Cross multiply
426,453,926.84x = 639,719,928.20 × 119,743,973 - Step 4: Simplify right side
426,453,926.84x = 76,602,605,809,942,752 - Step 5: Solve for x
x = 76,602,605,809,942,752/426,453,926.84 - Step 6: Final answer
x = 179,626,920.96
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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.