Finding the Fourth Proportional to 213,392,709.12, 294,482,237.40 and 115,607,565.12
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Solution
The fourth proportional to 213,392,709.12, 294,482,237.40 and 115,607,565.12 is: 159,538,601.75
Step by Step Solution
- Step 1: Write the proportion equation
213,392,709.12 : 294,482,237.40 = 115,607,565.12 : x - Step 2: Convert to fraction form
213,392,709.12/294,482,237.40 = 115,607,565.12/x - Step 3: Cross multiply
213,392,709.12x = 294,482,237.40 × 115,607,565.12 - Step 4: Simplify right side
213,392,709.12x = 34,044,374,436,903,800 - Step 5: Solve for x
x = 34,044,374,436,903,800/213,392,709.12 - Step 6: Final answer
x = 159,538,601.75
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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.