Finding the Fourth Proportional to 122,777,578.58, 169,437,068.63 and 67,025,971.77
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Solution
The fourth proportional to 122,777,578.58, 169,437,068.63 and 67,025,971.77 is: 92,498,030.26
Step by Step Solution
- Step 1: Write the proportion equation
122,777,578.58 : 169,437,068.63 = 67,025,971.77 : x - Step 2: Convert to fraction form
122,777,578.58/169,437,068.63 = 67,025,971.77/x - Step 3: Cross multiply
122,777,578.58x = 169,437,068.63 × 67,025,971.77 - Step 4: Simplify right side
122,777,578.58x = 11,356,684,178,066,760 - Step 5: Solve for x
x = 11,356,684,178,066,760/122,777,578.58 - Step 6: Final answer
x = 92,498,030.26
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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.