Finding the Fourth Proportional to 557,638,475.20, 836,457,712.80 and 194,011,979.20
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Solution
The fourth proportional to 557,638,475.20, 836,457,712.80 and 194,011,979.20 is: 291,017,968.80
Step by Step Solution
- Step 1: Write the proportion equation
557,638,475.20 : 836,457,712.80 = 194,011,979.20 : x - Step 2: Convert to fraction form
557,638,475.20/836,457,712.80 = 194,011,979.20/x - Step 3: Cross multiply
557,638,475.20x = 836,457,712.80 × 194,011,979.20 - Step 4: Simplify right side
557,638,475.20x = 162,282,816,377,433,152 - Step 5: Solve for x
x = 162,282,816,377,433,152/557,638,475.20 - Step 6: Final answer
x = 291,017,968.80
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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.