Finding the Fourth Proportional to 75,054,516.06, 103,521,837.63 and 68,879,503.26
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Solution
The fourth proportional to 75,054,516.06, 103,521,837.63 and 68,879,503.26 is: 95,004,712.93
Step by Step Solution
- Step 1: Write the proportion equation
75,054,516.06 : 103,521,837.63 = 68,879,503.26 : x - Step 2: Convert to fraction form
75,054,516.06/103,521,837.63 = 68,879,503.26/x - Step 3: Cross multiply
75,054,516.06x = 103,521,837.63 × 68,879,503.26 - Step 4: Simplify right side
75,054,516.06x = 7,130,532,752,516,776 - Step 5: Solve for x
x = 7,130,532,752,516,776/75,054,516.06 - Step 6: Final answer
x = 95,004,712.93
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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.