Finding the Fourth Proportional to 289,695,752.58, 399,782,985.24 and 157,539,620.91
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Solution
The fourth proportional to 289,695,752.58, 399,782,985.24 and 157,539,620.91 is: 217,406,224.91
Step by Step Solution
- Step 1: Write the proportion equation
289,695,752.58 : 399,782,985.24 = 157,539,620.91 : x - Step 2: Convert to fraction form
289,695,752.58/399,782,985.24 = 157,539,620.91/x - Step 3: Cross multiply
289,695,752.58x = 399,782,985.24 × 157,539,620.91 - Step 4: Simplify right side
289,695,752.58x = 62,981,659,940,977,728 - Step 5: Solve for x
x = 62,981,659,940,977,728/289,695,752.58 - Step 6: Final answer
x = 217,406,224.91
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.