Finding the Fourth Proportional to 122,711,860.58, 169,345,911.06 and 67,711,259.94
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Solution
The fourth proportional to 122,711,860.58, 169,345,911.06 and 67,711,259.94 is: 93,443,493.97
Step by Step Solution
- Step 1: Write the proportion equation
122,711,860.58 : 169,345,911.06 = 67,711,259.94 : x - Step 2: Convert to fraction form
122,711,860.58/169,345,911.06 = 67,711,259.94/x - Step 3: Cross multiply
122,711,860.58x = 169,345,911.06 × 67,711,259.94 - Step 4: Simplify right side
122,711,860.58x = 11,466,625,003,559,780 - Step 5: Solve for x
x = 11,466,625,003,559,780/122,711,860.58 - Step 6: Final answer
x = 93,443,493.97
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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.