Finding the Fourth Proportional to 220,147,849.80, 330,221,774.70 and 56,385,289.80
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Solution
The fourth proportional to 220,147,849.80, 330,221,774.70 and 56,385,289.80 is: 84,577,934.70
Step by Step Solution
- Step 1: Write the proportion equation
220,147,849.80 : 330,221,774.70 = 56,385,289.80 : x - Step 2: Convert to fraction form
220,147,849.80/330,221,774.70 = 56,385,289.80/x - Step 3: Cross multiply
220,147,849.80x = 330,221,774.70 × 56,385,289.80 - Step 4: Simplify right side
220,147,849.80x = 18,619,650,464,729,808 - Step 5: Solve for x
x = 18,619,650,464,729,808/220,147,849.80 - Step 6: Final answer
x = 84,577,934.70
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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.