Finding the Fourth Proportional to 233,103,636.49, 321,681,045.36 and 128,679,465.80
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Solution
The fourth proportional to 233,103,636.49, 321,681,045.36 and 128,679,465.80 is: 177,576,573.66
Step by Step Solution
- Step 1: Write the proportion equation
233,103,636.49 : 321,681,045.36 = 128,679,465.80 : x - Step 2: Convert to fraction form
233,103,636.49/321,681,045.36 = 128,679,465.80/x - Step 3: Cross multiply
233,103,636.49x = 321,681,045.36 × 128,679,465.80 - Step 4: Simplify right side
233,103,636.49x = 41,393,745,074,910,368 - Step 5: Solve for x
x = 41,393,745,074,910,368/233,103,636.49 - Step 6: Final answer
x = 177,576,573.66
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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.