Finding the Fourth Proportional to 68,103,531.51, 93,984,858.86 and 37,165,693.65
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Solution
The fourth proportional to 68,103,531.51, 93,984,858.86 and 37,165,693.65 is: 51,289,740.70
Step by Step Solution
- Step 1: Write the proportion equation
68,103,531.51 : 93,984,858.86 = 37,165,693.65 : x - Step 2: Convert to fraction form
68,103,531.51/93,984,858.86 = 37,165,693.65/x - Step 3: Cross multiply
68,103,531.51x = 93,984,858.86 × 37,165,693.65 - Step 4: Simplify right side
68,103,531.51x = 3,493,012,471,943,420 - Step 5: Solve for x
x = 3,493,012,471,943,420/68,103,531.51 - Step 6: Final answer
x = 51,289,740.70
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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.