Finding the Fourth Proportional to 81,242,944.94, 121,860,125.42 and 26,648,339.06
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Solution
The fourth proportional to 81,242,944.94, 121,860,125.42 and 26,648,339.06 is: 39,971,100.78
Step by Step Solution
- Step 1: Write the proportion equation
81,242,944.94 : 121,860,125.42 = 26,648,339.06 : x - Step 2: Convert to fraction form
81,242,944.94/121,860,125.42 = 26,648,339.06/x - Step 3: Cross multiply
81,242,944.94x = 121,860,125.42 × 26,648,339.06 - Step 4: Simplify right side
81,242,944.94x = 3,247,369,940,257,693.50 - Step 5: Solve for x
x = 3,247,369,940,257,693.50/81,242,944.94 - Step 6: Final answer
x = 39,971,100.78
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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.