Finding the Fourth Proportional to 213,392,716.87, 294,482,248.10 and 115,607,572.87
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Solution
The fourth proportional to 213,392,716.87, 294,482,248.10 and 115,607,572.87 is: 159,538,612.45
Step by Step Solution
- Step 1: Write the proportion equation
213,392,716.87 : 294,482,248.10 = 115,607,572.87 : x - Step 2: Convert to fraction form
213,392,716.87/294,482,248.10 = 115,607,572.87/x - Step 3: Cross multiply
213,392,716.87x = 294,482,248.10 × 115,607,572.87 - Step 4: Simplify right side
213,392,716.87x = 34,044,377,955,564,136 - Step 5: Solve for x
x = 34,044,377,955,564,136/213,392,716.87 - Step 6: Final answer
x = 159,538,612.45
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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.