Finding the Fourth Proportional to 128,571,053.84, 177,429,356.52 and 69,834,866
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Solution
The fourth proportional to 128,571,053.84, 177,429,356.52 and 69,834,866 is: 96,372,822.40
Step by Step Solution
- Step 1: Write the proportion equation
128,571,053.84 : 177,429,356.52 = 69,834,866 : x - Step 2: Convert to fraction form
128,571,053.84/177,429,356.52 = 69,834,866/x - Step 3: Cross multiply
128,571,053.84x = 177,429,356.52 × 69,834,866 - Step 4: Simplify right side
128,571,053.84x = 12,390,755,337,040,428 - Step 5: Solve for x
x = 12,390,755,337,040,428/128,571,053.84 - Step 6: Final answer
x = 96,372,822.40
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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.