Finding the Fourth Proportional to 637,779,586.72, 880,135,840.74 and 344,424,154.72
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Solution
The fourth proportional to 637,779,586.72, 880,135,840.74 and 344,424,154.72 is: 475,305,339.49
Step by Step Solution
- Step 1: Write the proportion equation
637,779,586.72 : 880,135,840.74 = 344,424,154.72 : x - Step 2: Convert to fraction form
637,779,586.72/880,135,840.74 = 344,424,154.72/x - Step 3: Cross multiply
637,779,586.72x = 880,135,840.74 × 344,424,154.72 - Step 4: Simplify right side
637,779,586.72x = 303,140,042,985,651,072 - Step 5: Solve for x
x = 303,140,042,985,651,072/637,779,586.72 - Step 6: Final answer
x = 475,305,339.49
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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.