Finding the Fourth Proportional to 42,128,240.67, 58,136,957.96 and 22,812,656.67
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Solution
The fourth proportional to 42,128,240.67, 58,136,957.96 and 22,812,656.67 is: 31,481,458.53
Step by Step Solution
- Step 1: Write the proportion equation
42,128,240.67 : 58,136,957.96 = 22,812,656.67 : x - Step 2: Convert to fraction form
42,128,240.67/58,136,957.96 = 22,812,656.67/x - Step 3: Cross multiply
42,128,240.67x = 58,136,957.96 × 22,812,656.67 - Step 4: Simplify right side
42,128,240.67x = 1,326,258,461,665,640.25 - Step 5: Solve for x
x = 1,326,258,461,665,640.25/42,128,240.67 - Step 6: Final answer
x = 31,481,458.53
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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.