Finding the Fourth Proportional to 221,780,863.80, 332,671,295.70 and 164,385,235.80
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Solution
The fourth proportional to 221,780,863.80, 332,671,295.70 and 164,385,235.80 is: 246,577,853.70
Step by Step Solution
- Step 1: Write the proportion equation
221,780,863.80 : 332,671,295.70 = 164,385,235.80 : x - Step 2: Convert to fraction form
221,780,863.80/332,671,295.70 = 164,385,235.80/x - Step 3: Cross multiply
221,780,863.80x = 332,671,295.70 × 164,385,235.80 - Step 4: Simplify right side
221,780,863.80x = 54,686,249,387,536,032 - Step 5: Solve for x
x = 54,686,249,387,536,032/221,780,863.80 - Step 6: Final answer
x = 246,577,853.70
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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.