Finding the Fourth Proportional to 230,531,938.65, 318,133,124.24 and 124,685,472.15
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Solution
The fourth proportional to 230,531,938.65, 318,133,124.24 and 124,685,472.15 is: 172,065,437.15
Step by Step Solution
- Step 1: Write the proportion equation
230,531,938.65 : 318,133,124.24 = 124,685,472.15 : x - Step 2: Convert to fraction form
230,531,938.65/318,133,124.24 = 124,685,472.15/x - Step 3: Cross multiply
230,531,938.65x = 318,133,124.24 × 124,685,472.15 - Step 4: Simplify right side
230,531,938.65x = 39,666,578,801,795,584 - Step 5: Solve for x
x = 39,666,578,801,795,584/230,531,938.65 - Step 6: Final answer
x = 172,065,437.15
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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.