Finding the Fourth Proportional to 77,424,198.98, 116,133,148.58 and 19,130,408.82
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Solution
The fourth proportional to 77,424,198.98, 116,133,148.58 and 19,130,408.82 is: 28,694,834.94
Step by Step Solution
- Step 1: Write the proportion equation
77,424,198.98 : 116,133,148.58 = 19,130,408.82 : x - Step 2: Convert to fraction form
77,424,198.98/116,133,148.58 = 19,130,408.82/x - Step 3: Cross multiply
77,424,198.98x = 116,133,148.58 × 19,130,408.82 - Step 4: Simplify right side
77,424,198.98x = 2,221,674,609,793,550.50 - Step 5: Solve for x
x = 2,221,674,609,793,550.50/77,424,198.98 - Step 6: Final answer
x = 28,694,834.94
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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.