Finding the Fourth Proportional to 388,376,117.10, 582,564,175.65 and 243,257,294.70
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Solution
The fourth proportional to 388,376,117.10, 582,564,175.65 and 243,257,294.70 is: 364,885,942.05
Step by Step Solution
- Step 1: Write the proportion equation
388,376,117.10 : 582,564,175.65 = 243,257,294.70 : x - Step 2: Convert to fraction form
388,376,117.10/582,564,175.65 = 243,257,294.70/x - Step 3: Cross multiply
388,376,117.10x = 582,564,175.65 × 243,257,294.70 - Step 4: Simplify right side
388,376,117.10x = 141,712,985,357,754,608 - Step 5: Solve for x
x = 141,712,985,357,754,608/388,376,117.10 - Step 6: Final answer
x = 364,885,942.05
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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.