Finding the Fourth Proportional to 39,307,537.80, 58,961,306.70 and 13,745,881.80
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Solution
The fourth proportional to 39,307,537.80, 58,961,306.70 and 13,745,881.80 is: 20,618,822.70
Step by Step Solution
- Step 1: Write the proportion equation
39,307,537.80 : 58,961,306.70 = 13,745,881.80 : x - Step 2: Convert to fraction form
39,307,537.80/58,961,306.70 = 13,745,881.80/x - Step 3: Cross multiply
39,307,537.80x = 58,961,306.70 × 13,745,881.80 - Step 4: Simplify right side
39,307,537.80x = 810,475,152,671,748.12 - Step 5: Solve for x
x = 810,475,152,671,748.12/39,307,537.80 - Step 6: Final answer
x = 20,618,822.70
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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.