Finding the Fourth Proportional to 261,134,893.74, 391,688,165.52 and 79,367,899.98
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Solution
The fourth proportional to 261,134,893.74, 391,688,165.52 and 79,367,899.98 is: 119,047,541.67
Step by Step Solution
- Step 1: Write the proportion equation
261,134,893.74 : 391,688,165.52 = 79,367,899.98 : x - Step 2: Convert to fraction form
261,134,893.74/391,688,165.52 = 79,367,899.98/x - Step 3: Cross multiply
261,134,893.74x = 391,688,165.52 × 79,367,899.98 - Step 4: Simplify right side
261,134,893.74x = 31,087,467,144,341,044 - Step 5: Solve for x
x = 31,087,467,144,341,044/261,134,893.74 - Step 6: Final answer
x = 119,047,541.67
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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.