Finding the Fourth Proportional to 122,560,451.09, 169,128,332.30 and 66,804,644.81
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Solution
The fourth proportional to 122,560,451.09, 169,128,332.30 and 66,804,644.81 is: 92,187,635.29
Step by Step Solution
- Step 1: Write the proportion equation
122,560,451.09 : 169,128,332.30 = 66,804,644.81 : x - Step 2: Convert to fraction form
122,560,451.09/169,128,332.30 = 66,804,644.81/x - Step 3: Cross multiply
122,560,451.09x = 169,128,332.30 × 66,804,644.81 - Step 4: Simplify right side
122,560,451.09x = 11,298,558,165,429,484 - Step 5: Solve for x
x = 11,298,558,165,429,484/122,560,451.09 - Step 6: Final answer
x = 92,187,635.29
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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.