Finding the Fourth Proportional to 351,084,119.70, 484,312,399.29 and 217,079,199.65
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Solution
The fourth proportional to 351,084,119.70, 484,312,399.29 and 217,079,199.65 is: 299,455,720.50
Step by Step Solution
- Step 1: Write the proportion equation
351,084,119.70 : 484,312,399.29 = 217,079,199.65 : x - Step 2: Convert to fraction form
351,084,119.70/484,312,399.29 = 217,079,199.65/x - Step 3: Cross multiply
351,084,119.70x = 484,312,399.29 × 217,079,199.65 - Step 4: Simplify right side
351,084,119.70x = 105,134,148,020,280,960 - Step 5: Solve for x
x = 105,134,148,020,280,960/351,084,119.70 - Step 6: Final answer
x = 299,455,720.50
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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.