Finding the Fourth Proportional to 257,059,826.86, 385,320,646.62 and 107,579,938.74
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Solution
The fourth proportional to 257,059,826.86, 385,320,646.62 and 107,579,938.74 is: 161,257,291.99
Step by Step Solution
- Step 1: Write the proportion equation
257,059,826.86 : 385,320,646.62 = 107,579,938.74 : x - Step 2: Convert to fraction form
257,059,826.86/385,320,646.62 = 107,579,938.74/x - Step 3: Cross multiply
257,059,826.86x = 385,320,646.62 × 107,579,938.74 - Step 4: Simplify right side
257,059,826.86x = 41,452,771,559,357,336 - Step 5: Solve for x
x = 41,452,771,559,357,336/257,059,826.86 - Step 6: Final answer
x = 161,257,291.99
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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.