Finding the Fourth Proportional to 168,030,221.80, 252,045,332.70 and 147,874,829.80
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Solution
The fourth proportional to 168,030,221.80, 252,045,332.70 and 147,874,829.80 is: 221,812,244.70
Step by Step Solution
- Step 1: Write the proportion equation
168,030,221.80 : 252,045,332.70 = 147,874,829.80 : x - Step 2: Convert to fraction form
168,030,221.80/252,045,332.70 = 147,874,829.80/x - Step 3: Cross multiply
168,030,221.80x = 252,045,332.70 × 147,874,829.80 - Step 4: Simplify right side
168,030,221.80x = 37,271,160,674,896,872 - Step 5: Solve for x
x = 37,271,160,674,896,872/168,030,221.80 - Step 6: Final answer
x = 221,812,244.70
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1.5x scale
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.