Finding the Fourth Proportional to 411,211,985.37, 616,757,305.08 and 120,000,917.79
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Solution
The fourth proportional to 411,211,985.37, 616,757,305.08 and 120,000,917.79 is: 179,983,670.94
Step by Step Solution
- Step 1: Write the proportion equation
411,211,985.37 : 616,757,305.08 = 120,000,917.79 : x - Step 2: Convert to fraction form
411,211,985.37/616,757,305.08 = 120,000,917.79/x - Step 3: Cross multiply
411,211,985.37x = 616,757,305.08 × 120,000,917.79 - Step 4: Simplify right side
411,211,985.37x = 74,011,442,663,287,040 - Step 5: Solve for x
x = 74,011,442,663,287,040/411,211,985.37 - Step 6: Final answer
x = 179,983,670.94
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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.