Finding the Fourth Proportional to 147,560,900.20, 221,475,194.70 and 74,828,278.60
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Solution
The fourth proportional to 147,560,900.20, 221,475,194.70 and 74,828,278.60 is: 112,310,290.53
Step by Step Solution
- Step 1: Write the proportion equation
147,560,900.20 : 221,475,194.70 = 74,828,278.60 : x - Step 2: Convert to fraction form
147,560,900.20/221,475,194.70 = 74,828,278.60/x - Step 3: Cross multiply
147,560,900.20x = 221,475,194.70 × 74,828,278.60 - Step 4: Simplify right side
147,560,900.20x = 16,572,607,572,000,842 - Step 5: Solve for x
x = 16,572,607,572,000,842/147,560,900.20 - Step 6: Final answer
x = 112,310,290.53
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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.