Finding the Fourth Proportional to 149,768,604.96, 206,676,710.01 and 83,689,646.21
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Solution
The fourth proportional to 149,768,604.96, 206,676,710.01 and 83,689,646.21 is: 115,489,496.25
Step by Step Solution
- Step 1: Write the proportion equation
149,768,604.96 : 206,676,710.01 = 83,689,646.21 : x - Step 2: Convert to fraction form
149,768,604.96/206,676,710.01 = 83,689,646.21/x - Step 3: Cross multiply
149,768,604.96x = 206,676,710.01 × 83,689,646.21 - Step 4: Simplify right side
149,768,604.96x = 17,296,700,740,737,072 - Step 5: Solve for x
x = 17,296,700,740,737,072/149,768,604.96 - Step 6: Final answer
x = 115,489,496.25
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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.