Finding the Fourth Proportional to 68,205,587.56, 102,306,904.18 and 19,020,128.49
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Solution
The fourth proportional to 68,205,587.56, 102,306,904.18 and 19,020,128.49 is: 28,529,780.80
Step by Step Solution
- Step 1: Write the proportion equation
68,205,587.56 : 102,306,904.18 = 19,020,128.49 : x - Step 2: Convert to fraction form
68,205,587.56/102,306,904.18 = 19,020,128.49/x - Step 3: Cross multiply
68,205,587.56x = 102,306,904.18 × 19,020,128.49 - Step 4: Simplify right side
68,205,587.56x = 1,945,890,462,614,400.50 - Step 5: Solve for x
x = 1,945,890,462,614,400.50/68,205,587.56 - Step 6: Final answer
x = 28,529,780.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.