Finding the Fourth Proportional to 527,372,447.99, 790,981,669.32 and 153,779,943.11
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Solution
The fourth proportional to 527,372,447.99, 790,981,669.32 and 153,779,943.11 is: 230,647,460.95
Step by Step Solution
- Step 1: Write the proportion equation
527,372,447.99 : 790,981,669.32 = 153,779,943.11 : x - Step 2: Convert to fraction form
527,372,447.99/790,981,669.32 = 153,779,943.11/x - Step 3: Cross multiply
527,372,447.99x = 790,981,669.32 × 153,779,943.11 - Step 4: Simplify right side
527,372,447.99x = 121,637,116,105,127,520 - Step 5: Solve for x
x = 121,637,116,105,127,520/527,372,447.99 - Step 6: Final answer
x = 230,647,460.95
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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.