Finding the Fourth Proportional to 147,744,929.40, 221,617,394.10 and 139,808,743.80
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Solution
The fourth proportional to 147,744,929.40, 221,617,394.10 and 139,808,743.80 is: 209,713,115.70
Step by Step Solution
- Step 1: Write the proportion equation
147,744,929.40 : 221,617,394.10 = 139,808,743.80 : x - Step 2: Convert to fraction form
147,744,929.40/221,617,394.10 = 139,808,743.80/x - Step 3: Cross multiply
147,744,929.40x = 221,617,394.10 × 139,808,743.80 - Step 4: Simplify right side
147,744,929.40x = 30,984,049,473,350,532 - Step 5: Solve for x
x = 30,984,049,473,350,532/147,744,929.40 - Step 6: Final answer
x = 209,713,115.70
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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.