Finding the Fourth Proportional to 212,720,403.30, 293,576,725.28 and 124,688,364.16
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Solution
The fourth proportional to 212,720,403.30, 293,576,725.28 and 124,688,364.16 is: 172,083,171.44
Step by Step Solution
- Step 1: Write the proportion equation
212,720,403.30 : 293,576,725.28 = 124,688,364.16 : x - Step 2: Convert to fraction form
212,720,403.30/293,576,725.28 = 124,688,364.16/x - Step 3: Cross multiply
212,720,403.30x = 293,576,725.28 × 124,688,364.16 - Step 4: Simplify right side
212,720,403.30x = 36,605,601,630,612,912 - Step 5: Solve for x
x = 36,605,601,630,612,912/212,720,403.30 - Step 6: Final answer
x = 172,083,171.44
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.