Finding the Fourth Proportional to 338,128,423.20, 507,192,634.80 and 122,689,677.60
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Solution
The fourth proportional to 338,128,423.20, 507,192,634.80 and 122,689,677.60 is: 184,034,516.40
Step by Step Solution
- Step 1: Write the proportion equation
338,128,423.20 : 507,192,634.80 = 122,689,677.60 : x - Step 2: Convert to fraction form
338,128,423.20/507,192,634.80 = 122,689,677.60/x - Step 3: Cross multiply
338,128,423.20x = 507,192,634.80 × 122,689,677.60 - Step 4: Simplify right side
338,128,423.20x = 62,227,300,844,706,536 - Step 5: Solve for x
x = 62,227,300,844,706,536/338,128,423.20 - Step 6: Final answer
x = 184,034,516.40
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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.