Finding the Fourth Proportional to 580,124,455.80, 870,186,683.70 and 197,172,007.80
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Solution
The fourth proportional to 580,124,455.80, 870,186,683.70 and 197,172,007.80 is: 295,758,011.70
Step by Step Solution
- Step 1: Write the proportion equation
580,124,455.80 : 870,186,683.70 = 197,172,007.80 : x - Step 2: Convert to fraction form
580,124,455.80/870,186,683.70 = 197,172,007.80/x - Step 3: Cross multiply
580,124,455.80x = 870,186,683.70 × 197,172,007.80 - Step 4: Simplify right side
580,124,455.80x = 171,576,455,585,952,544 - Step 5: Solve for x
x = 171,576,455,585,952,544/580,124,455.80 - Step 6: Final answer
x = 295,758,011.70
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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.