Finding the Fourth Proportional to 138,411,262.69, 207,106,134.33 and 83,112,775.33
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Solution
The fourth proportional to 138,411,262.69, 207,106,134.33 and 83,112,775.33 is: 124,362,463.56
Step by Step Solution
- Step 1: Write the proportion equation
138,411,262.69 : 207,106,134.33 = 83,112,775.33 : x - Step 2: Convert to fraction form
138,411,262.69/207,106,134.33 = 83,112,775.33/x - Step 3: Cross multiply
138,411,262.69x = 207,106,134.33 × 83,112,775.33 - Step 4: Simplify right side
138,411,262.69x = 17,213,165,612,034,090 - Step 5: Solve for x
x = 17,213,165,612,034,090/138,411,262.69 - Step 6: Final answer
x = 124,362,463.56
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.