Finding the Fourth Proportional to 930,059,728.65, 1,394,605,178.91 and 438,641,052.12
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Solution
The fourth proportional to 930,059,728.65, 1,394,605,178.91 and 438,641,052.12 is: 657,733,115.55
Step by Step Solution
- Step 1: Write the proportion equation
930,059,728.65 : 1,394,605,178.91 = 438,641,052.12 : x - Step 2: Convert to fraction form
930,059,728.65/1,394,605,178.91 = 438,641,052.12/x - Step 3: Cross multiply
930,059,728.65x = 1,394,605,178.91 × 438,641,052.12 - Step 4: Simplify right side
930,059,728.65x = 611,731,082,969,083,264 - Step 5: Solve for x
x = 611,731,082,969,083,264/930,059,728.65 - Step 6: Final answer
x = 657,733,115.55
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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.