Finding the Fourth Proportional to 153,682,739.51, 212,083,863.21 and 84,068,121.08
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Solution
The fourth proportional to 153,682,739.51, 212,083,863.21 and 84,068,121.08 is: 116,014,927.56
Step by Step Solution
- Step 1: Write the proportion equation
153,682,739.51 : 212,083,863.21 = 84,068,121.08 : x - Step 2: Convert to fraction form
153,682,739.51/212,083,863.21 = 84,068,121.08/x - Step 3: Cross multiply
153,682,739.51x = 212,083,863.21 × 84,068,121.08 - Step 4: Simplify right side
153,682,739.51x = 17,829,491,890,712,058 - Step 5: Solve for x
x = 17,829,491,890,712,058/153,682,739.51 - Step 6: Final answer
x = 116,014,927.56
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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.