Finding the Fourth Proportional to 678,517,715.68, 936,394,444.50 and 510,958,354.24
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Solution
The fourth proportional to 678,517,715.68, 936,394,444.50 and 510,958,354.24 is: 705,152,648.52
Step by Step Solution
- Step 1: Write the proportion equation
678,517,715.68 : 936,394,444.50 = 510,958,354.24 : x - Step 2: Convert to fraction form
678,517,715.68/936,394,444.50 = 510,958,354.24/x - Step 3: Cross multiply
678,517,715.68x = 936,394,444.50 × 510,958,354.24 - Step 4: Simplify right side
678,517,715.68x = 478,458,564,281,199,040 - Step 5: Solve for x
x = 478,458,564,281,199,040/678,517,715.68 - Step 6: Final answer
x = 705,152,648.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.