Finding the Fourth Proportional to 291,252,818.46, 401,928,874.02 and 157,290,723.44
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Solution
The fourth proportional to 291,252,818.46, 401,928,874.02 and 157,290,723.44 is: 217,061,189.99
Step by Step Solution
- Step 1: Write the proportion equation
291,252,818.46 : 401,928,874.02 = 157,290,723.44 : x - Step 2: Convert to fraction form
291,252,818.46/401,928,874.02 = 157,290,723.44/x - Step 3: Cross multiply
291,252,818.46x = 401,928,874.02 × 157,290,723.44 - Step 4: Simplify right side
291,252,818.46x = 63,219,683,364,020,776 - Step 5: Solve for x
x = 63,219,683,364,020,776/291,252,818.46 - Step 6: Final answer
x = 217,061,189.99
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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.