Finding the Fourth Proportional to 190,838,821.80, 286,258,232.70 and 68,155,666.95
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Solution
The fourth proportional to 190,838,821.80, 286,258,232.70 and 68,155,666.95 is: 102,233,500.43
Step by Step Solution
- Step 1: Write the proportion equation
190,838,821.80 : 286,258,232.70 = 68,155,666.95 : x - Step 2: Convert to fraction form
190,838,821.80/286,258,232.70 = 68,155,666.95/x - Step 3: Cross multiply
190,838,821.80x = 286,258,232.70 × 68,155,666.95 - Step 4: Simplify right side
190,838,821.80x = 19,510,120,769,596,800 - Step 5: Solve for x
x = 19,510,120,769,596,800/190,838,821.80 - Step 6: Final answer
x = 102,233,500.43
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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.