Finding the Fourth Proportional to 149,768,628.58, 206,676,742.81 and 83,689,669.83
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Solution
The fourth proportional to 149,768,628.58, 206,676,742.81 and 83,689,669.83 is: 115,489,528.96
Step by Step Solution
- Step 1: Write the proportion equation
149,768,628.58 : 206,676,742.81 = 83,689,669.83 : x - Step 2: Convert to fraction form
149,768,628.58/206,676,742.81 = 83,689,669.83/x - Step 3: Cross multiply
149,768,628.58x = 206,676,742.81 × 83,689,669.83 - Step 4: Simplify right side
149,768,628.58x = 17,296,708,367,308,726 - Step 5: Solve for x
x = 17,296,708,367,308,726/149,768,628.58 - Step 6: Final answer
x = 115,489,528.96
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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.