Finding the Fourth Proportional to 68,740,721.05, 94,838,980.44 and 38,968,176.98
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Solution
The fourth proportional to 68,740,721.05, 94,838,980.44 and 38,968,176.98 is: 53,762,924.18
Step by Step Solution
- Step 1: Write the proportion equation
68,740,721.05 : 94,838,980.44 = 38,968,176.98 : x - Step 2: Convert to fraction form
68,740,721.05/94,838,980.44 = 38,968,176.98/x - Step 3: Cross multiply
68,740,721.05x = 94,838,980.44 × 38,968,176.98 - Step 4: Simplify right side
68,740,721.05x = 3,695,702,174,176,311 - Step 5: Solve for x
x = 3,695,702,174,176,311/68,740,721.05 - Step 6: Final answer
x = 53,762,924.18
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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.