Finding the Fourth Proportional to 115,359,455.67, 159,185,961.13 and 68,308,088.19
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Solution
The fourth proportional to 115,359,455.67, 159,185,961.13 and 68,308,088.19 is: 94,259,188.45
Step by Step Solution
- Step 1: Write the proportion equation
115,359,455.67 : 159,185,961.13 = 68,308,088.19 : x - Step 2: Convert to fraction form
115,359,455.67/159,185,961.13 = 68,308,088.19/x - Step 3: Cross multiply
115,359,455.67x = 159,185,961.13 × 68,308,088.19 - Step 4: Simplify right side
115,359,455.67x = 10,873,688,671,477,952 - Step 5: Solve for x
x = 10,873,688,671,477,952/115,359,455.67 - Step 6: Final answer
x = 94,259,188.45
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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.