Finding the Fourth Proportional to 81,203,355.02, 121,836,934.79 and 35,733,263.06
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Solution
The fourth proportional to 81,203,355.02, 121,836,934.79 and 35,733,263.06 is: 53,613,933.07
Step by Step Solution
- Step 1: Write the proportion equation
81,203,355.02 : 121,836,934.79 = 35,733,263.06 : x - Step 2: Convert to fraction form
81,203,355.02/121,836,934.79 = 35,733,263.06/x - Step 3: Cross multiply
81,203,355.02x = 121,836,934.79 × 35,733,263.06 - Step 4: Simplify right side
81,203,355.02x = 4,353,631,241,535,061.50 - Step 5: Solve for x
x = 4,353,631,241,535,061.50/81,203,355.02 - Step 6: Final answer
x = 53,613,933.07
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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.