Finding the Fourth Proportional to 126,702,903.12, 174,850,006.20 and 68,756,151.12
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Solution
The fourth proportional to 126,702,903.12, 174,850,006.20 and 68,756,151.12 is: 94,883,488.49
Step by Step Solution
- Step 1: Write the proportion equation
126,702,903.12 : 174,850,006.20 = 68,756,151.12 : x - Step 2: Convert to fraction form
126,702,903.12/174,850,006.20 = 68,756,151.12/x - Step 3: Cross multiply
126,702,903.12x = 174,850,006.20 × 68,756,151.12 - Step 4: Simplify right side
126,702,903.12x = 12,022,013,449,620,136 - Step 5: Solve for x
x = 12,022,013,449,620,136/126,702,903.12 - Step 6: Final answer
x = 94,883,488.49
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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.