Finding the Fourth Proportional to 128,133,241.52, 176,823,817.44 and 69,395,909.36
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Solution
The fourth proportional to 128,133,241.52, 176,823,817.44 and 69,395,909.36 is: 95,766,324.66
Step by Step Solution
- Step 1: Write the proportion equation
128,133,241.52 : 176,823,817.44 = 69,395,909.36 : x - Step 2: Convert to fraction form
128,133,241.52/176,823,817.44 = 69,395,909.36/x - Step 3: Cross multiply
128,133,241.52x = 176,823,817.44 × 69,395,909.36 - Step 4: Simplify right side
128,133,241.52x = 12,270,849,607,755,426 - Step 5: Solve for x
x = 12,270,849,607,755,426/128,133,241.52 - Step 6: Final answer
x = 95,766,324.66
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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.