Finding the Fourth Proportional to 208,377,663.12, 312,569,133.12 and 78,950,506.32
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Solution
The fourth proportional to 208,377,663.12, 312,569,133.12 and 78,950,506.32 is: 118,426,759.14
Step by Step Solution
- Step 1: Write the proportion equation
208,377,663.12 : 312,569,133.12 = 78,950,506.32 : x - Step 2: Convert to fraction form
208,377,663.12/312,569,133.12 = 78,950,506.32/x - Step 3: Cross multiply
208,377,663.12x = 312,569,133.12 × 78,950,506.32 - Step 4: Simplify right side
208,377,663.12x = 24,677,491,319,827,480 - Step 5: Solve for x
x = 24,677,491,319,827,480/208,377,663.12 - Step 6: Final answer
x = 118,426,759.14
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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.