Finding the Fourth Proportional to 39,307,641.80, 58,961,462.70 and 12,013,881.80
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Solution
The fourth proportional to 39,307,641.80, 58,961,462.70 and 12,013,881.80 is: 18,020,822.70
Step by Step Solution
- Step 1: Write the proportion equation
39,307,641.80 : 58,961,462.70 = 12,013,881.80 : x - Step 2: Convert to fraction form
39,307,641.80/58,961,462.70 = 12,013,881.80/x - Step 3: Cross multiply
39,307,641.80x = 58,961,462.70 × 12,013,881.80 - Step 4: Simplify right side
39,307,641.80x = 708,356,043,632,909 - Step 5: Solve for x
x = 708,356,043,632,909/39,307,641.80 - Step 6: Final answer
x = 18,020,822.70
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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.