Finding the Fourth Proportional to 190,633,112.80, 285,819,126.12 and 97,078,990.12
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Solution
The fourth proportional to 190,633,112.80, 285,819,126.12 and 97,078,990.12 is: 145,552,006.75
Step by Step Solution
- Step 1: Write the proportion equation
190,633,112.80 : 285,819,126.12 = 97,078,990.12 : x - Step 2: Convert to fraction form
190,633,112.80/285,819,126.12 = 97,078,990.12/x - Step 3: Cross multiply
190,633,112.80x = 285,819,126.12 × 97,078,990.12 - Step 4: Simplify right side
190,633,112.80x = 27,747,032,120,710,516 - Step 5: Solve for x
x = 27,747,032,120,710,516/190,633,112.80 - Step 6: Final answer
x = 145,552,006.75
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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.